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use the distributive property to simplify the expression 8 (x^2 - 3) - 3 (5x^2 + 4)

i cant figure out how to solve this question on my home work and its getting frustrating

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Vivian L. | Microsoft Word/Excel/Outlook, essay composition, math; I LOVE TO TEACHMicrosoft Word/Excel/Outlook, essay comp...
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Hi Maddie;
8 (x2 - 3) - 3 (5x2 + 4)
Let's begin with...
8 (x2 - 3)
Let's distribute the 8...
8x2-24
 
Let's move on to...
 3 (5x2 + 4)
Let's distribute the 3...
15x2+12
 
Let's subtract the second result from the first...
-7x2-36