Q. Fully simplify the expression below and write your answer as a single fraction.10x2−60x+80x−2⋅x5−9x4+18x3x2−10x+24Answer:
Factor Quadratic Polynomials: First, factor the quadratic and cubic polynomials in the numerator and denominator where possible.
Factor Cubic Polynomial: Factor the quadratic polynomial in the numerator: x2−10x+24.This factors into (x−4)(x−6) because −4 and −6 are the roots that satisfy the equation x2−10x+24=0.
Rewrite with Factored Forms: Factor the quadratic polynomial in the denominator: 10x2−60x+80.This factors into 10(x2−6x+8), and further into 10(x−4)(x−2) because −4 and −2 are the roots that satisfy the equation x2−6x+8=0.
Cancel Common Factors: Factor the cubic polynomial in the denominator: x5−9x4+18x3.This factors into x3(x2−9x+18), and further into x3(x−3)(x−6) because −3 and −6 are the roots that satisfy the equation x2−9x+18=0.
Simplify Expression: Now, rewrite the original expression with the factored forms:10(x−4)(x−2)(x−2)∗x3(x−3)(x−6)(x−4)(x−6).
Simplify Expression: Now, rewrite the original expression with the factored forms:10(x−4)(x−2)(x−2)∗x3(x−3)(x−6)(x−4)(x−6).Cancel out the common factors in the numerator and the denominator:The (x−2) terms cancel, and the (x−4) and (x−6) terms cancel.
Simplify Expression: Now, rewrite the original expression with the factored forms:10(x−4)(x−2)(x−2)∗x3(x−3)(x−6)(x−4)(x−6).Cancel out the common factors in the numerator and the denominator:The (x−2) terms cancel, and the (x−4) and (x−6) terms cancel.The simplified expression is now:10x3(x−3)1.
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