Factorise(4x2 + 16y2 +22 - 16xy + 8yz - 4zx)
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Answer:
=42x2y2-28x2y2z2
Step-by-step explanation:
((4+16+22)x2y2)-(16+8+4)x2y2z2
=42x2y2-28x2y2z2
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