For all x, (3x + 7)² = ?
a. 6x + 14
b. 6x² + 14
c. 9x² + 49
d. 9x² + 21x +...
Mathematics, 20.08.2019 22:40 Conner5459
For all x, (3x + 7)² = ?
a. 6x + 14
b. 6x² + 14
c. 9x² + 49
d. 9x² + 21x + 49
e. 9x² + 42x + 49
can anyone explain how to make it step by step?
Answers: 1
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