Question Simplify the expression x4−2x2 Evaluate x4−x2×2Solution x4−2x2 Show Solution Factor the expression x2(x2−2) Evaluate x4−x2×2Use the commutative property to reorder the terms x4−2x2Rewrite the expression x2×x2−x2×2Solution x2(x2−2) Show Solution Find the roots x1=−2,x2=0,x3=2Alternative Form x1≈−1.414214,x2=0,x3≈1.414214 Evaluate x4−x2×2To find the roots of the expression,set the expression equal to 0 x4−x2×2=0Use the commutative property to reorder the terms x4−2x2=0Factor the expression x2(x2−2)=0Separate the equation into 2 possible cases x2=0x2−2=0The only way a power can be 0 is when the base equals 0 x=0x2−2=0Solve the equation More Steps Evaluate x2−2=0Move the constant to the right-hand side and change its sign x2=0+2Removing 0 doesn't change the value,so remove it from the expression 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=−2 x=0x=2x=−2Solution x1=−2,x2=0,x3=2Alternative Form x1≈−1.414214,x2=0,x3≈1.414214 Show Solution