Question Simplify the expression r−42r5−22r−8 Evaluate r−4r3×2r2−22r−8Solution More Steps Evaluate r3×2r2Multiply the terms with the same base by adding their exponents r3+2×2Add the numbers r5×2Use the commutative property to reorder the terms 2r5 r−42r5−22r−8 Show Solution Find the excluded values r=4 Evaluate r−4r3×2r2−22r−8To find the excluded values,set the denominators equal to 0 r−4=0Move the constant to the right-hand side and change its sign r=0+4Solution r=4 Show Solution
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