factor 49x^2-112x+64
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49x²-112x+64
(7x)²-2×7x×8+(8)² {by a²-2ab+b²=(a-b)²}
(7x-8)²answer.......
49x²-112x+64
(7x)²-2×7x×8+(8)² {by a²-2ab+b²=(a-b)²}
(7x-8)²answer.......
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