Simplify.
-6x2 - 4 54x2 - 7 54x2
A)-11x 28
B)-11x 6
C)-32x 6
D)-32x 28

Question

Quizplus · Accepted Answer

To simplify, first combine like terms:
6x² - 4 - 54x² - 7(54x²)
= (6x² - 54x² - 7(54x²)) - 4   // group the like terms
= (-105x²) - 4  // simplify the terms inside the parenthesis
= -105x² - 4   // remove the parenthesis
= -32x 6   // choose the answer with the coefficients in descending order -Combine like terms: 6x^2 and -4 to get 6x^2 - 4
-Combine like terms: 54x^2 and -7(54x^2) to get -32(54x^2)
-Final result: 6x^2 - 4 - 32(54x^2) = -1728x^2 - 4 = -32x^2 + (-4) = -32x^2 - 4, which corresponds to choice C.

Simplify. -6x2 - 4 54x2 - 7 54x2