Q. Factor the expression completely.20x3−10x2Answer:
Identify GCF: Identify the greatest common factor (GCF) of the terms in the expression 20x3−10x2. The GCF of 20x3 and 10x2 is 10x2, since 10 is the largest number that divides both 20 and 10, and x2 is the highest power of x that is a factor of both x3 and x2.
Factor Out GCF: Factor out the GCF from the expression.We can write the expression as 10x2(2x−1), where 2x−1 is what remains after factoring out 10x2 from each term.Calculation: 10x220x3=2x and 10x210x2=1, so the factored form is 10x2(2x−1).