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Using identities expand (5x/2+3/4)whole cube |
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Answer» we KNOW that (a+b) ³ = a³+b³ + 3a²b + 3ab² (5x/2) ³+(3/4) ³+3(5x/2) ²(3/4) + 3 (5x/2) (3/4) ² = 125x³/8 + 27/64 + 3× (25x²/4) ×3/4 + 3× 5x/2×(9/16) = 125x³/8+27/64 + 225x²/4 + 135x/32 is answer |
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