Question Factor the expression (y−3)(y+3) Evaluate y2−9Rewrite the expression in exponential form y2−32Solution (y−3)(y+3) Show Solution Find the roots y1=−3,y2=3 Evaluate y2−9To find the roots of the expression,set the expression equal to 0 y2−9=0Move the constant to the right-hand side and change its sign y2=0+9Removing 0 doesn't change the value,so remove it from the expression y2=9Take the root of both sides of the equation and remember to use both positive and negative roots y=±9Simplify the expression More Steps Evaluate 9Write the number in exponential form with the base of 3 32Reduce the index of the radical and exponent with 2 3 y=±3Separate the equation into 2 possible cases y=3y=−3Solution y1=−3,y2=3 Show Solution
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