(-29 + 7y-2)²
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1
Answer:
(-29 +7y-2)^2 = (7y-31)^2= 7Y^2- 961
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0
Answer:
(7y-31)²
(7y)²+(-31)²-2×31×7y
49y²+961-434y
49y²-434y+961......ANSWER
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