Question

Write an expression
the quantity of 7+x, squared​

Answer 1

`\huge \boxed{(x+7)^2 }`

Explanation:

The quantity x + 7 is squared.

`(x+7)^2`

Expand the brackets and simplify the expression.

`(x+7)(x+7)`

`x(x+7)+7(x+7)`

`x^2 +7x+7x+49`

`x^2 +14x+49`

We can leave the expression in factored form.

Answer 2

( X+7 ) ^ 2

Explanation:

=X ^ 2+ 2 x 7 x X + 7 ^ 2

= X^2 +14X +49