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Which part of the quadratic formula tells you whether the quadratic equation can be solved by factoring?
−b b2 − 4ac 2a
Use the part of the quadratic formula that you chose above and find its value given the following quadratic equation:
2x2 + 7x + 3 = 0
 one year ago
 one year ago
Which part of the quadratic formula tells you whether the quadratic equation can be solved by factoring? −b b2 − 4ac 2a Use the part of the quadratic formula that you chose above and find its value given the following quadratic equation: 2x2 + 7x + 3 = 0
 one year ago
 one year ago

This Question is Closed

klimenkovBest ResponseYou've already chosen the best response.0
What do you think about it?
 one year ago

thisisarriBest ResponseYou've already chosen the best response.0
i think its the middle one
 one year ago

klimenkovBest ResponseYou've already chosen the best response.0
Why so you think so? Or you just guess?
 one year ago

thisisarriBest ResponseYou've already chosen the best response.0
well, i think you need that to factor, but its pretty much just a guess
 one year ago

thisisarriBest ResponseYou've already chosen the best response.0
why, what are you thinking?
 one year ago

klimenkovBest ResponseYou've already chosen the best response.0
You can factor this only in case if you have real roots. They will be if the discriminant of your equation is bigger that zero.
 one year ago

alexwantstolearnBest ResponseYou've already chosen the best response.1
the b^24ac > 0 means there are two distinct real roots
 one year ago

alexwantstolearnBest ResponseYou've already chosen the best response.1
dw:1365103062271:dw
 one year ago

thisisarriBest ResponseYou've already chosen the best response.0
oh, soo than my guess was wrong? @klimenkov @alexwantstolearn
 one year ago

alexwantstolearnBest ResponseYou've already chosen the best response.1
its is the middle on you are correct that part will tell you how many x intercepts there are
 one year ago

alexwantstolearnBest ResponseYou've already chosen the best response.1
i will provide an example
 one year ago

alexwantstolearnBest ResponseYou've already chosen the best response.1
dw:1365103320051:dw
 one year ago

thisisarriBest ResponseYou've already chosen the best response.0
ohh, hah cool! so i am right!
 one year ago

thisisarriBest ResponseYou've already chosen the best response.0
okay, so what about the second part?
 one year ago

alexwantstolearnBest ResponseYou've already chosen the best response.1
dw:1365103456715:dw
 one year ago

alexwantstolearnBest ResponseYou've already chosen the best response.1
just about todo that
 one year ago

alexwantstolearnBest ResponseYou've already chosen the best response.1
when you said the second part you want to know how that applies to that equation correct
 one year ago

thisisarriBest ResponseYou've already chosen the best response.0
noo, i mean this: Use the part of the quadratic formula that you chose above and find its value given the following quadratic equation: 2x2 + 7x + 3 = 0
 one year ago

alexwantstolearnBest ResponseYou've already chosen the best response.1
sorry i find it really hard to read when its not an image
 one year ago

alexwantstolearnBest ResponseYou've already chosen the best response.1
dw:1365103731072:dw
 one year ago

alexwantstolearnBest ResponseYou've already chosen the best response.1
dw:1365103799936:dw
 one year ago

thisisarriBest ResponseYou've already chosen the best response.0
sooo, ahah what is this?
 one year ago

alexwantstolearnBest ResponseYou've already chosen the best response.1
since its positive it means it has real roots
 one year ago

alexwantstolearnBest ResponseYou've already chosen the best response.1
sorry what part don't understand and i will try and explain it more clearly
 one year ago

thisisarriBest ResponseYou've already chosen the best response.0
like, there are so many numbers i dont know which one is the answer. so look at the b part that i typed a few minutes ago and tell me what i should put in it
 one year ago

alexwantstolearnBest ResponseYou've already chosen the best response.1
the answer too b is 25
 one year ago

alexwantstolearnBest ResponseYou've already chosen the best response.1
do you understand why that part of the quadratic equation is essential
 one year ago

alexwantstolearnBest ResponseYou've already chosen the best response.1
so the answers summarised are
 one year ago

alexwantstolearnBest ResponseYou've already chosen the best response.1
dw:1365104088534:dw
 one year ago

alexwantstolearnBest ResponseYou've already chosen the best response.1
are you happy with the answer i have shown the answer to a and b
 one year ago

alexwantstolearnBest ResponseYou've already chosen the best response.1
also i have explained why b^24ac is needed and gave an example of its use. I also calculated b for you and showed you what the value of a, b and c
 one year ago

thisisarriBest ResponseYou've already chosen the best response.0
yes, thank you soo much!!!
 one year ago
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