Question Simplify the expression 9+6x+x2 Evaluate (3+x)2Use (a+b)2=a2+2ab+b2 to expand the expression 32+2×3x+x2Solution 9+6x+x2 Show Solution Find the roots x=−3 Evaluate (3+x)2To find the roots of the expression,set the expression equal to 0 (3+x)2=0The only way a power can be 0 is when the base equals 0 3+x=0Move the constant to the right-hand side and change its sign x=0−3Solution x=−3 Show Solution
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