Question

Find the product of (x + 7)(x − 7).

A) x^2 − 14x + 49

B) x^2 − 49

C) x^2 + 14x + 49

D) x^2 + 49

Answer 1

what do you think?

Answer 2

x^2-49

Answer 3

@bahupepe explain ur answer plz

Answer 4

exactly !

Answer 5

The product for A. is

1) x^2 - 14x + 49
= (x-7) (x-7)
= (x-7)^2

Answer 6

For B. its


X^2-49=0
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Equation:

Solution for X^2-49=0 equation:

Simplifying
X2 + -49 = 0

Reorder the terms:
-49 + X2 = 0

Solving
-49 + X2 = 0

Solving for variable 'X'.

Move all terms containing X to the left, all other terms to the right.

Add '49' to each side of the equation.
-49 + 49 + X2 = 0 + 49

Combine like terms: -49 + 49 = 0
0 + X2 = 0 + 49
X2 = 0 + 49

Combine like terms: 0 + 49 = 49
X2 = 49

Simplifying
X2 = 49

Take the square root of each side:
X = {-7, 7}

Answer 7

7x7=49
x.x=x^2
(+)(-)= -

(x+7)(x-7)
x.x-7x+7x-(7)(7)
x^2-49