Question

25./if 2 (a2 + b ) = (a + b)2, then
(a).a=b
(b) a + b =0
(c) 2a=b
(d) ab =0​

Answer 1

Step-by-step explanation:

$2( {a}^{2} + b) = {(a + b)}^{2}$

$2 {a}^{2} + 2b = {a }^{2} + {b}^{2} + 2ab$

$2 {a}^{2} - {a}^{2} + 2b = {b}^{2} + 2ab$

${a}^{2} - {b}^{2} = 2ab - 2b$

${a}^{2} - {b}^{2} = 2b(a - 1)$

$( a + b)(a - b) = 2b(a - 1)$