When asked to factor the trinomial x^2-14x+49, a student gives the answer (x-7)(x+7). which of the following statements is true? a. the answer is incorrect; the plus sign should be a minus sign. b. the answer is incorrect; the minus sign should be a plus sign. c. the answer is incorrect; the 7's should be 14's. d. the answer is correct.

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

Step-by-step explanation:

we have

we know that

Solve for b

therefore

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