chloeh0919 chloeh0919

01-08-2019
Mathematics

contestada

Find the product of (x + 7)2.

x2 − 14x + 49

x2 + 14x + 49

x2 − 49

x2 + 49

Respuesta :

meredith48034 meredith48034

01-08-2019

Answer:

x^2 14x + 49

Step-by-step explanation:

Use F.O.I.L method

FIRST: x * x = x^2

OUTSIDE: 7*x

INSIDE: 7*x

LAST: 7*7= 49

x^2 + 7x + 7x + 49

x^2 14x + 49

Answer Link

lizzybogita lizzybogita

01-08-2019

Answer:

x^2 + 14x + 49

Step-by-step explanation:

(x + 7)^2

use the perfect trinomial formula: (a+b)^2 = a^2 -2ab +b^2

input variables

(x+7)^2 = x^2 -2(7)(x) +7^2

= x^2 -14(x) + 49

= x^2 -14x + 49

Answer Link

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