simplify:
(3x²y - 4xy + 7y²) - (-3x²y + 4xy -7y)
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1
Answer:
Step-by-step explanation:A.) 4xy + 2x²y + 3y² + 5x²y²
= 4xy + 2x² × y + 5x² × y²
= 4xy + 2x² + 5x² × y × y²
= 4xy + 7x² × y³
= 4xy + 7x²y³
= 4 x × y + 7 x × x × y × y × y
= 4 + 7 x × y × x × x × y × y × y
= 11x³y⁴
b.) 4xy + 3
= 4 × x × y + 3
= 4 + 3 × x × y
= 7xy
c.) 7x + 2
= 7 × x + 2
= 7 + 2 × x
= 9×x
= 9x
d.) 32 + 22xy + 3x² + 7y² + x²y²
= 32 + 22× x × y + 3 × x × x + 7× y × y + x × x × y × y
= 32 + 22 + 3 + 7 × x × y × x × x × y × y + x × x × y × y
= 64x³y³ + x²y²
= 64x5y5 (after x and y there is 5 so , this five is of power)
= 64x5x5
Answered by
2
Answer:
(3x²y - 4xy + 7y²) - (-3x²y + 4xy -7y)
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