Question Factor the expression 2(x2−10) Evaluate 2x2−20Solution 2(x2−10) Show Solution Find the roots x1=−10,x2=10Alternative Form x1≈−3.162278,x2≈3.162278 Evaluate 2x2−20To find the roots of the expression,set the expression equal to 0 2x2−20=0Move the constant to the right-hand side and change its sign 2x2=0+20Removing 0 doesn't change the value,so remove it from the expression 2x2=20Divide both sides 22x2=220Divide the numbers x2=220Divide the numbers More Steps Evaluate 220Reduce the numbers 110Calculate 10 x2=10Take the root of both sides of the equation and remember to use both positive and negative roots x=±10Separate the equation into 2 possible cases x=10x=−10Solution x1=−10,x2=10Alternative Form x1≈−3.162278,x2≈3.162278 Show Solution
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