Question Simplify the expression −q2+8q−16 Evaluate (q−4)(4−q)Multiply the terms −(q−4)2Expand the expression More Steps Evaluate (q−4)2Use (a−b)2=a2−2ab+b2 to expand the expression q2−2q×4+42Calculate q2−8q+16 −(q2−8q+16)Solution −q2+8q−16 Show Solution Find the roots q=4 Evaluate (q−4)(4−q)To find the roots of the expression,set the expression equal to 0 (q−4)(4−q)=0Multiply the terms −(q−4)2=0Change the signs on both sides of the equation (q−4)2=0The only way a power can be 0 is when the base equals 0 q−4=0Move the constant to the right-hand side and change its sign q=0+4Solution q=4 Show Solution
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