Q. Factor the expression completely.−10x4−16x5Answer:
Identify Factors: Identify the common factors in both terms of the expression −10x4 and −16x5.The common factors are a negative sign, a factor of 2, and the lowest power of x present in both terms, which is x4.
Factor Out GCF: Factor out the greatest common factor (GCF) from both terms.The GCF of −10x4 and −16x5 is −2x4.So, we factor −2x4 out of both terms.−10x4−16x5=−2x4(5+8x)
Check Factored Expression: Check the factored expression to ensure that it is equivalent to the original expression when expanded.−2x4(5+8x)=−2x4×5−2x4×8x=−10x4−16x5This matches the original expression, so the factoring is correct.