what is the ans
(2m-3n-p)²=?
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Step-by-step explanation:
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Answer - 4m² + 9n² + p² -12mn +6np - 4pm
Step-by-step explanation:
Given f(x) = (2m-3n-p)², Expanded f(x) = ?
Using (α+β+∅)²=α²+β²+∅²+2(αβ+β∅+∅α)
Here, α=2m, β=-3n, ∅=-p
⇒ Expanded f(x) = (2m)² + (-3n)² + (-p)² + 2[ (2m)(-3n) + (-3n)(-p) + (-p)(2m)]
= 4m² + 9n² + p² + 2[ -6mn + 3np - 2pm ]
= 4m² + 9n² + p² -12mn +6np - 4pm
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