Question

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simplify.
$-12x^2 - 8x^2$

Explanation:

Step1: Identify like terms

Both terms have $x^2$, so they are like terms.

Step2: Combine coefficients

Add the numerical coefficients: $-12 - 8 = -20$

Step3: Attach the common variable

Multiply the combined coefficient by $x^2$: $-20x^2$

Answer:

$-20x^2$