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anonymous
 one year ago
Factor: x2 + 11x + 10
a: (x + 10)(x +1)
b: (x + 11)(x + 10)
c: (x + 2)(x + 5)
d: prime
anonymous
 one year ago
Factor: x2 + 11x + 10 a: (x + 10)(x +1) b: (x + 11)(x + 10) c: (x + 2)(x + 5) d: prime

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UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1To factor \[x^2+11x+10 \] we have to focus on the middle term and the last term so our last term is 10, and we have to list all possibilities of multiplication of 10 so our choices would be 1 x 10 = 10 2 x 5 = 10 then based on the middle term we use addition and only one pair of numbers work

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1so what's 1+10? what's 2+5 ?

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1ah! We found our 11 because 10+1 = 11 10 x 1 = 10 so since we have found or numbers we can factor

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1since your quadratic equation is all positive signs, we don't have to worry about sign combinations

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1so we have (x+ ?)(x + ? ) fill in those ? using the information I've typed earlier

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1close xD "We found our 11 because 10+1 = 11"

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1no.. remember those 2 digital 10 and 1 that produced 11? write those down (x+?)(x+?)

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1wut did I just type .. it's 2 numbers 10 and 1 =_=

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1no now we're going backwards 5+2 is 7 and it doesn't match the middle term which is 11 so we throw that combination out

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1:/ we found our combination 10 x 1 = 10 which matches the last term 10 + 1 = 11 matches the middle term what numbers did I just use to make 10 and 11 ?

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1yeah that was one of the numbers. (x+1)(x+?) what was the other number?

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1and you can check by using the FOIL method (x+1)(x+10) = x^2+10x+x+10 =x^2+11x+10

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so is that the final answer?
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