Question Simplify the expression 625x4−1000x3+600x2−160x+16 Evaluate (5x−2)4Solution 625x4−1000x3+600x2−160x+16 Show Solution Find the roots x=52Alternative Form x=0.4 Evaluate (5x−2)4To find the roots of the expression,set the expression equal to 0 (5x−2)4=0The only way a power can be 0 is when the base equals 0 5x−2=0Move the constant to the right-hand side and change its sign 5x=0+2Removing 0 doesn't change the value,so remove it from the expression 5x=2Divide both sides 55x=52Solution x=52Alternative Form x=0.4 Show Solution
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