Y2 + 15y +56 = (y + 7)(y+)

y +7

y - 7

y-8

y - 8

Find the number after y+

Skip to content# Y2 + 15y +56 = (y + 7)(y+)y +7y – 7y-8y – 8Find the number after y+

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Y2 + 15y +56 = (y + 7)(y+)

y +7

y - 7

y-8

y - 8

Find the number after y+

19y+63 is the correct answer

1) b. 8

2) b. 15

Do you need an explanation?

y^2 + 15y + 56 factors to (y+7)(y+8)

This is because 7+8 = 15 is the middle term and 7*8 = 56 is the last term. We can use the box method, FOIL rule, or distributive property to confirm we have the right factorization. I'll use the distributive rule

(y+7)(y+8) = y(y+8) + 7(y+8)

(y+7)(y+8) = y^2 + 8y + 7y + 56

(y+7)(y+8) = y^2 + 15y + 56

1-b-8

2-b-15

Step-by-step explanation: