Question

hw sec. cr.7
score: 5/10 5/10 answered
question 6
factor the polynomial completely.
$100y^{2}+100y-2000=$
question help: video ebook

Explanation:

Step1: Factor out GCF

$100(y^2 + y - 20)$

Step2: Factor quadratic trinomial

Find two numbers: $5$ and $-4$, since $5+(-4)=1$ and $5\times(-4)=-20$.
$100(y + 5)(y - 4)$

Answer:

$100(y + 5)(y - 4)$