Question Simplify the expression 2x2−4 Evaluate x2×2−4Solution 2x2−4 Show Solution Factor the expression 2(x2−2) Evaluate x2×2−4Use the commutative property to reorder the terms 2x2−4Solution 2(x2−2) Show Solution Find the roots x1=−2,x2=2Alternative Form x1≈−1.414214,x2≈1.414214 Evaluate x2×2−4To find the roots of the expression,set the expression equal to 0 x2×2−4=0Use the commutative property to reorder the terms 2x2−4=0Move the constant to the right-hand side and change its sign 2x2=0+4Removing 0 doesn't change the value,so remove it from the expression 2x2=4Divide both sides 22x2=24Divide the numbers x2=24Divide the numbers More Steps Evaluate 24Reduce the numbers 12Calculate 2 x2=2Take the root of both sides of the equation and remember to use both positive and negative roots x=±2Separate the equation into 2 possible cases x=2x=−2Solution x1=−2,x2=2Alternative Form x1≈−1.414214,x2≈1.414214 Show Solution