Question Factor the expression (t−4)(t+4) Evaluate t2−16Rewrite the expression in exponential form t2−42Solution (t−4)(t+4) Show Solution Find the roots t1=−4,t2=4 Evaluate t2−16To find the roots of the expression,set the expression equal to 0 t2−16=0Move the constant to the right-hand side and change its sign t2=0+16Removing 0 doesn't change the value,so remove it from the expression t2=16Take the root of both sides of the equation and remember to use both positive and negative roots t=±16Simplify the expression More Steps Evaluate 16Write the number in exponential form with the base of 4 42Reduce the index of the radical and exponent with 2 4 t=±4Separate the equation into 2 possible cases t=4t=−4Solution t1=−4,t2=4 Show Solution
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