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x ^(2) + 2x - 15


x ^(2) + 2x - 15 ​-example-1
User BKS
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1 Answer

4 votes

Answer:

(x-3)(x+5)

Explanation:

the only 2 things that can multiply together to get x^2 is x and x

so you already have the first 2 parts of the factoring

(x±?)(x±?)

to get 15 there are a 2 multipliers

1,15

3,5

if you tried 1,15

(x+15)(x-1)

that wouldnt work because 15-1=14

we need to get to 2

Let's trty 5 and 3

(x+5)(x-3)

5x-3=-15

5-3=2

sorry if my explanation doesnt make sense im terrible at explaining things lol

User R K
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7.3k points