Question

(x+a)(x-a) = x² -25 then what is the value of a ?​

Answer 1

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`(x + a)(x - a) = {x}^(2) - 25`

Use, the algebraic identity ↦

`(a + b)(a - b) = {a}^(2) - {b}^(2)`

So,

`(x + a)(x - a) = {x}^(2) - 25 \\ \\ ⟹ √(25) = 5`

↦So, the value of a is 5.

ʰᵒᵖᵉ ⁱᵗ ʰᵉˡᵖˢ

꧁❣ ʀᴀɪɴʙᴏᴡˢᵃˡᵗ2²2² ࿐

Answer 2

The value of A is 5

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