The given trinomial can be factored using the factorization method.
x² + 4x - 21
= x² +7x - 3x - 21
= x(x+7) - 3(x+7)
= (x+7)(x-3)
Thus, (x+7)(x-3) is the factored form of the polynomial.
So the correct answer is option B
12 I know because I just took the quiz
Answer:
2, 2, 4, 8, 14, 22, 32, 44
Answer:
657
Step-by-step explanation:
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Answer: -31.72
Step-by-step explanation: