Question

(5x-4y)³ expand using identies

Answer 1

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(5x-4y)³ expand using identies

$\huge\bigstar\huge\tt\underline\red{ᴀɴsᴡᴇʀ }\bigstar$

we use this identity :-

${(a - b)}^{3} = {a}^{3} + {b}^{3} - 3ab(a - b)$

${(5x)}^{3} + {(4y)}^{3} - 3(5x)(4y)(5x - 4y)$

${125x}^{3} + {64y}^{3} - 60xy(5x - 4y)$

Here is your answer^^^^^

$\red{ ☆ UPSC-ASPIRANT ☆ }$

Hope it helps you..!!!

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Thankyou:)

Answer 2

Answer:

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