Question

Q27 What is the solution of (x + 4)2 – (x - 5)2 = 9 ?
O 3
O 2
O 1
O 4​

Answer 1

x = 1

${(x + 4) }^{2} - {(x - 5)}^{2} = 9 \\ = > {x}^{2} + 8x + 16 - ( {x}^{2} - 10x + 25) = 9 \\ = > {x}^{2} + 8x + 16 - {x}^{2} + 10x - 25) = 9 \\ = > 18x - 9 = 9 \\ = > 18x = 18 \\ = > x = 1$

Thank You.

Hopefully u appreciate my work and mark this as Brainliest

Kindly Follow.