pls tell by identities note identities
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question is not clear please send clear
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4x^2+16x+15
Step-by-step explanation:
(2x+3)(2x+5)
(x+a)(x+b)=x^2+(a+b)x+ab
(2x+3)(2x+5)=(2x)^2+(3+5)(2x)+(3)(5)
=4x^2+16x+15
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