factorise:25xsquare+4ysquare+20xy
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2
Answer:
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Answered by
1
Answer:
(-5x)² + (2y)² + (-3z)² + 2×(-5x)(2y) + 2× 2y×(-3z) +2 × (-3z)(-5x)
= (-5x + 2y -3z)²
= (-5x + 2y -3z)(-5x +2y -3z)
Step-by-step explanation:
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