Q. Divide. Write your answer in simplest form.9s2−15s+48s÷5s+23
Rewrite division as multiplication: Write the division of the two fractions as a multiplication by the reciprocal of the second fraction.We have: (9s2−15s+48s)÷(5s+23)This can be rewritten as: (9s2−15s+48s)×(35s+2)
Factor quadratic expression: Factor the quadratic expression in the denominator of the first fraction if possible.The quadratic expression is 9s2−15s+4. We need to check if it can be factored.Factoring attempt: (3s−4)(3s−1)=9s2−3s−12s+4=9s2−15s+4So, the factored form is correct.The first fraction becomes: ((3s−4)(3s−1)8s)
Multiply numerators and denominators: Multiply the numerators and the denominators of the two fractions.We have: ((3s−4)(3s−1)8s)×35s+2Multiplying the numerators: 8s×(5s+2)=40s2+16sMultiplying the denominators: (3s−4)(3s−1)×3=3(3s−4)(3s−1)The expression becomes: 3(3s−4)(3s−1)40s2+16s
Simplify expression: Simplify the expression if possible.We look for common factors in the numerator and the denominator.There are no common factors between 40s2+16s and (3s−4)(3s−1).So, the expression is already in its simplest form.
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