doralyb26
doralyb26 doralyb26
  • 19-08-2020
  • Mathematics
contestada

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

Respuesta :

09pqr4sT
09pqr4sT 09pqr4sT
  • 19-08-2020

Answer:

[tex]\huge \boxed{(x+7)^2 }[/tex]

Step-by-step explanation:

The quantity x + 7 is squared.

[tex](x+7)^2[/tex]

Expand the brackets and simplify the expression.

[tex](x+7)(x+7)[/tex]

[tex]x(x+7)+7(x+7)[/tex]

[tex]x^2 +7x+7x+49[/tex]

[tex]x^2 +14x+49[/tex]

We can leave the expression in factored form.

Answer Link
qJackp qJackp
  • 19-08-2020

Answer:

( X+7 ) ^ 2

Step-by-step explanation:

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

= X^2 +14X +49

Answer Link

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