Question Simplify the expression 9t2−24t+16 Evaluate (3t−4)2Use (a−b)2=a2−2ab+b2 to expand the expression (3t)2−2×3t×4+42Solution 9t2−24t+16 Show Solution Find the roots t=34Alternative Form t=1.3˙ Evaluate (3t−4)2To find the roots of the expression,set the expression equal to 0 (3t−4)2=0The only way a power can be 0 is when the base equals 0 3t−4=0Move the constant to the right-hand side and change its sign 3t=0+4Removing 0 doesn't change the value,so remove it from the expression 3t=4Divide both sides 33t=34Solution t=34Alternative Form t=1.3˙ Show Solution
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