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problems 2:
Complete to a perfect term:
a) 49x² – 56 xy +_______
b) 25 – 80xz + _______
c) 100x² + 20xy + _______
d) 4x4 + 24x²y² + _______
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answers:
Complete to a perfect term:
a) 25x² + 70xy + 49y²
b) 25 – 80xz + 64x²z²
c) 100x² + 20xy + y²
d) 4x4 + 24x²y² + 9y4