Expand and simplify the expression \((2x-7)^2\).

( 2 x − 7 ) 2 = ( 2 x − 7 ) ( 2 x − 7 ) = 2 x ⋅ 2 x + 2 x ⋅ ( − 7 ) − 7 ⋅ 2 x − 7 ⋅ ( − 7 ) = 4 x 2 − 14 x − 14 x + 49 = 4 x 2 − 28 x + 49 or ( 2 x − 7 ) 2 = ( 2 x ) 2 − 2 ⋅ 2 x ⋅ 7 + 7 2 = 4 x 2 − 28 x + 49 ( a − b ) 2 = a 2 − 2 ab + b 2

Answered by Anonymous | 2024-06-10

Alright, lets assume x = 5. 2 X 5 = 10 - 7 = 3, then 3 squared is 9. Ans. = 9.

Answered by BJthesmartguy | 2024-06-10

To expand ( 2 x − 7 ) 2 , we use the binomial square formula to get 4 x 2 − 28 x + 49 . This involves calculating each individual term and then combining them. The final answer is 4 x 2 − 28 x + 49 .
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Answered by Anonymous | 2024-12-26