Q. Solve for all values of x by factoring.x2−23=2Answer: x=
Add 23: Add 23 to both sides of the equation to isolate the x2 term.We have the equation x2−23=2. To solve for x, we first want to isolate the x2 term on one side of the equation. We do this by adding 23 to both sides of the equation.x2−23+23=2+23x2=25
Take square root: Take the square root of both sides of the equation to solve for x.Now that we have x2=25, we can take the square root of both sides to solve for x. Remember that taking the square root of a number gives us two solutions: one positive and one negative.x2=±25x=±5
Check solutions: Check the solutions in the original equation.We have found that x=±5. We should substitute these values back into the original equation to ensure they are correct.For x=5:(5)2−23=25−23=2, which is true.For x=−5:(−5)2−23=25−23=2, which is also true.Both solutions satisfy the original equation.
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