Question

विस्तार करा: (3x + 4y - 5p)²

Answer 1

विस्तार:

$\begin{lgathered}{(a + b + c)}^{2} = {a}^{2} + {b}^{2} + {c}^{2} + 2ab + 2bc + 2ca \\ \\\end{lgathered}$
$a = 3x \\ \\ b =4y \\ \\ c = - 5p$

${(3x + 4y - 5p)}^{2} = \\ \\ = {(3x)}^{2} + {(4y)}^{2} + {( - 5p)}^{2} + \\\\2(3x)(4y) + 2(4y)( - 5p) + 2( - 5p)(3x) \\ \\ {(3x + 4y - 5p)}^{2}\\\\= 9 {x}^{2} + 16 {y}^{2} + 25 {p}^{2} + 24xy - 40yp - 30px$

Answer 2

answer will be 9x²+16y²+25p²+24xy-40yp-30xp.