radicalA radical contains a root symbol, such as √x or ∛x. A square root squares to x; a cube root cubes to x.
You’ll leave with these skills
01Solve a square root equation in Desmos without squaringGraph each side of the equation exactly as printed and click where the two graphs cross to find the x-value.
02Spot a false solution that squaring both sides createsPlug each answer into the original equation and cross out any answer that makes the two sides unequal.
03Find the solutions of an absolute value equation by graphingGraph both sides and find their intersections. In the example |2x+3|=13, a horizontal line crosses both arms of the V. Other expressions or a different right side can give a different number of solutions.
04Rule out a value that makes a denominator zeroCross out any answer that makes a denominator in the original equation zero, even when the graphs seem to cross there.
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