Question

Help asap

Answer 1

Answer:

Option A. The answer is incorrect; the plus sign should be a minus sign

Step-by-step explanation:

we have

x^{2}-14x+49

we know that

(x-b)^{2}=x^{2}-2bx+b^{2}

Solve for b

-2bx= -14x

2b= 14

b = 7

b^ = 49

b = 7

therefore

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

Verify each case

case A) The answer is incorrect; the plus sign should be a minus sign

The statement is true

case B) The answer is incorrect; The minus sign should be a plus sign

The statement is false

Because, the plus sign should be a minus sign

case C) The answer is incorrect; the 7's should be 14's

The statement is false

case D) The answer is correct

The statement is false