if 25x²+1/4x²=20, find125x³+1/8x³
its related to expansion
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Answered by
3
Step-by-step explanation:
(5x+1/2x)²=25x²+1/4x² +2×5x×1/2x
=20+5=√25=5
(5x+1/2x)³=125x³+1/8x³ +3×5x×1/2x(5)
125-37.5=125x³+1/8x³
87.5=125x³+1/8x³
Answered by
0
125x^3+ 1/8X^3=50 by solving the expansion in the given question.
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