Identify Perfect Square Trinomial: Identify if the quadratic is a perfect square trinomial. y2+8y+16 can be written as (y+4)(y+4) because (y+4)2=y2+2⋅4y+42.
Check Factoring by Multiplying: Check the factoring by multiplying (y+4)(y+4).(y+4)(y+4)=y2+4y+4y+16=y2+8y+16, which matches the original expression.
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