Question

4
$4y {}^{2} + 36y + 80$
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Answer 1

Step-by-step explanation:

4y^2+36y+80

=4(y^2+9y+20)=4(y^2+5y+4y+20)

=4(y(y+5)+4(y+5))

=4(y+5)(y+4)