Forgot password? New user? Sign up
Existing user? Log in
Which solution to the equation x2=xx^2 = xx2=x contains an error?
A.
Original: x2=xDivide both sides by x: x=1\begin{aligned} \text{Original: }\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\; x^2 &= x\\ \text{Divide both sides by x:}\;\;\;\;\; x &= 1 \end{aligned}Original: x2Divide both sides by x:x=x=1
B.
Original: x2=xSubtract x from both sides: x2−x=0Factor: x(x−1)=0Use the Zero Product Property: x=0,x=1\begin{aligned} \text{Original: }\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\; x^2 &= x\\ \text{Subtract x from both sides:}\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;x^2 - x &= 0\\ \text{Factor:}\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\; x(x-1) &= 0\\ \text{Use the Zero Product Property:}\;\;\;\;\;\;\;\;\;\;\;\;\;\;\; x =0&, x = 1 \end{aligned}Original: x2Subtract x from both sides:x2−xFactor:x(x−1)Use the Zero Product Property:x=0=x=0=0,x=1
Problem Loading...
Note Loading...
Set Loading...