Question

How do you factor `y^2 + 15y + 56`?

Answer 1

(y + 7 )( y + 8)

Explanation:

to factor this expression look for 2 numbers that multiply together to give 56 and add together to give 15.
The 2 numbers that satisfy both conditions are 7 and 8

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