To simplify the expression, we can distribute the negative sign inside the second bracket:
(3x^2 + 10) - (-7x^2 - 9x)
Next, multiply both terms inside the second bracket by the negative sign:
(3x^2 + 10) + 7x^2 + 9x
Combine like terms (terms with the same variables and exponents):
3x^2 + 7x^2 + 10 + 9x
Combine the x^2 terms:
10x^2 + 10 + 9x
The simplified expression is 10x^2 + 9x + 10.
Perform the operation.
left bracket, 3, x, squared, plus, 10, right bracket, minus, left bracket, minus, 7, x, squared, minus, 9, x, right bracket
(3x
2
+10)−(−7x
2
−9x)
1 answer