70 POINTS!!!! PLEASE HELP!! I WILL MARK. BRAINLIEST!!
2 answers:
A. 4cd-25c²-0.16d²
-(5c-0.4d)²
b. -0.49x²-1.4xy-y²
-(0.7x+y)²
4cd-25c^2-0.16d^2= -1 • (25c - 2d)2<span>
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25
</span>
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