solve 3x²+8x+7x
A) 3x² + 15x
B) 18x3
C) 3x²+1
D) 3x²-x
Combining like terms, we get:
3x² + 8x + 7x = 3x² + 15x
Therefore, the answer is A) 3x² + 15x.
To simplify the expression 3x² + 8x + 7x, we combine the like terms.
Combining the terms 8x and 7x, we get 15x.
Therefore, the simplified expression is 3x² + 15x.
Therefore, the correct option is A) 3x² + 15x.