anonymous
  • anonymous
whose product is+15 and whose sum is -8???
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
Ok, so when you multiply two negatives it equals a positive, right?
anonymous
  • anonymous
yeh
anonymous
  • anonymous
So, then how do you get 15 when multiplying 2 negative numbers?

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More answers

anonymous
  • anonymous
no that is the question
anonymous
  • anonymous
Okay, how do you get 15 when multiplying 2 positive numbers?
anonymous
  • anonymous
5*3
anonymous
  • anonymous
So, since a negative times a negative is a positive, what are the numbers now?
anonymous
  • anonymous
thank you
anonymous
  • anonymous
Your welcome! ☺
anonymous
  • anonymous
And so, -5x-3= 15 and -3+-5= -8 !!
anonymous
  • anonymous
Is that all you need help with?
anonymous
  • anonymous
whose product is -6 and whose sum is +1
anonymous
  • anonymous
3*2
anonymous
  • anonymous
thanks you done it again
anonymous
  • anonymous
okay, so if you want those 2 numbers to have a sum of 1, which number do you turn negative?
anonymous
  • anonymous
2
anonymous
  • anonymous
good!
anonymous
  • anonymous
so -2x3 = -6 and -2+3 = 1
anonymous
  • anonymous
whose product is -12 and whose sum is -4
anonymous
  • anonymous
How can you get 12 when multiplying 2 positive numbers?
anonymous
  • anonymous
3*4
anonymous
  • anonymous
well, that and 2x6
anonymous
  • anonymous
thanks
anonymous
  • anonymous
So, which number do you turn negative to get a sum of -4?
anonymous
  • anonymous
-6
anonymous
  • anonymous
Good!
anonymous
  • anonymous
whose product is -12 and whose sum is -4
anonymous
  • anonymous
sorry wrong one
anonymous
  • anonymous
whose product is -16 and whose sum is 0
anonymous
  • anonymous
How do you get 16 when multiplying 2 positive numbers (that are the same) ?
anonymous
  • anonymous
4
anonymous
  • anonymous
thank you
anonymous
  • anonymous
Now you need to make 1 negative, and if you add -4 +4 what do you get?
anonymous
  • anonymous
0
anonymous
  • anonymous
what about 4-4
anonymous
  • anonymous
0
anonymous
  • anonymous
okay thank you but it says sum doesnt that matter
anonymous
  • anonymous
Sum is addition!
anonymous
  • anonymous
So it doesn't matter, but adding a negative is like subtracting a positive!
anonymous
  • anonymous
doesnt it not count as minus (because i heard my teacher say something like that)
anonymous
  • anonymous
okay
anonymous
  • anonymous
okay next q
anonymous
  • anonymous
What grade are you learning this in?
anonymous
  • anonymous
9
anonymous
  • anonymous
in the uk
anonymous
  • anonymous
Okay
anonymous
  • anonymous
What is that equivalent to in the us?
anonymous
  • anonymous
|dw:1362327623653:dw| +5x +6
anonymous
  • anonymous
Huh?
anonymous
  • anonymous
i dont know
anonymous
  • anonymous
|dw:1362327701244:dw|
anonymous
  • anonymous
factorrise
anonymous
  • anonymous
I don't know what your asking, please copy the question directly ☺
anonymous
  • anonymous
x squared +5x+6
anonymous
  • anonymous
What do you need to do with it?
anonymous
  • anonymous
factorise
anonymous
  • anonymous
okay.
anonymous
  • anonymous
http://www.mathsisfun.com/algebra/factoring.html read this, it may help you understand it better!
anonymous
  • anonymous
Did you read it?!
anonymous
  • anonymous
yes
anonymous
  • anonymous
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