Question

solve the question fast and step by step please

Answer 1

Ans.

${x}^{ {(5 + a)}^{2} } \times {x}^{(5 - {a}^{2}) } = {x}^{40} \\ or \: \: {x}^{25 + 10a + {a}^{2} + 5 - {a}^{2} } = {x}^{40} \\ or \: \: {x}^{(10a + 30)} = {x}^{ (10.1+ 30)}$

Comparing, we get a = 1.

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