Distribute term 10x2: Distribute the term 10x2 across the terms inside the parentheses.We apply the distributive propertya(b+c)=ab+ac.10x2∗(−9x2)+10x2∗10x
Multiply first set of terms: Multiply the first set of terms. 10x2×(−9x2)=−90x(2+2)=−90x4 We add the exponents when multiplying terms with the same base.
Multiply second set of terms: Multiply the second set of terms. 10x2×10x=100x2+1=100x3 Again, we add the exponents when multiplying terms with the same base.
Combine results: Combine the results from Step 2 and Step 3.The final expression is −90x4+100x3.
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