The equation degenerates to a straight line, so there is only one exact solution.
Expand both sides, the x² terms cancel out to leave a linear equation, then solve for x.
Hint: the left hand side is:
(x-7)²=x²-14x+49
Solve the equation by extracting square roots. List both the exact solutions and decimal solutions rounded to the nearest hundredth.
(x-7)squared = (x+3)squared
1 answer