Simplify the algebraic expression by combining like terms. -7x² + 12x²
To simplify the expression -7x² + 12x², you can combine the like terms by adding the coefficients of x².
-7x² + 12x² = (12 - 7)x² = 5x²
So, the simplified expression is 5x².
To simplify the algebraic expression -7x² + 12x², we combine the like terms. In this case, the like terms are the terms with the same variable and exponent.
-7x² + 12x² can be simplified to 5x².