Use the quadratic formula to solve the equation x2 - 4x = -7

Let's solve your equation step-by-step.

x2−4x=−7

Step 1: Subtract -7 from both sides.

x2−4x−(−7)=−7−(−7)

x2−4x+7=0

Step 2: Use quadratic formula with a=1, b=-4, c=7.

x=

−b±√b2−4ac

2a

x=

−(−4)±√(−4)2−4(1)(7)

2(1)

x=

4±√−12

2

No real solutions.

a reflection across the x-axis , followed by the by a reflection across the y-axis , and then a scale dilation of 0.5 .