Question Simplify the expression a2+6a+9 Evaluate (a+3)(a+3)Multiply the terms (a+3)2Use (a+b)2=a2+2ab+b2 to expand the expression a2+2a×3+32Solution a2+6a+9 Show Solution Find the roots a=−3 Evaluate (a+3)(a+3)To find the roots of the expression,set the expression equal to 0 (a+3)(a+3)=0Multiply the terms (a+3)2=0The only way a power can be 0 is when the base equals 0 a+3=0Move the constant to the right-hand side and change its sign a=0−3Solution a=−3 Show Solution
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