Question

Multiply this radical expressions. (√ 7X - 3 + 4) 2

Answer 1

`{ \tt{( √(7) x - 3 + 4) {}^(2) }} \\ { \tt{ = ( √(7)x + 1) {}^(2) }}`

» Split the bracket:

`{ \tt{ = ( √(7) x + 1)( √(7)x + 1) }}`

» Open brackets following distributive property;

`{ \tt{ = {7x}^(2) + 2 √(7) x + 1}}`