njahierica
njahierica
08-05-2018
Mathematics
contestada
How do I do this ??
Respuesta :
bnm1715bnm1715
bnm1715bnm1715
08-05-2018
the answer is b.) -12x^3+28x^2
Answer Link
wolfbunny0919
wolfbunny0919
08-05-2018
-4x^2 * 3x = -12x^3
-4x^2 *-7 = +28x^2
So since you can’t add them together the answer is the second one
Answer Link
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