Makerlmc705viz
Answered

Factor the polynomial: b^2 – b – 56

Sagot :

Mlcparra16viz
We look for two numbers with a product of -56 and a sum of -1
so:
1 - 56
2 - 28
4 - 14
7 - 8

So the two numbers are -8 and 7 so:
b²-b-56=(b-8)(b+7)