Question

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

Answer 1

Answer:

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

Step-by-step 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

Answer:

( X+7 ) ^ 2

Step-by-step explanation:

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

= X^2 +14X +49