Math, asked by ombakiesnet, 8 months ago

if the expression 25y2 _70y+d is a perfect square, where d is a constant, find the value of d

Answers

Answered by rex1235

1

Step-by-step explanation:

25y²-70y+d

25y²-70y+49

5y²-2.5y.7+7²

(5y-7)² d=49

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