Answer:
X=5/2
Step-by-step explanation:
4x2−20x+28=34x2-20x+28=3
Move all terms to the left side of the equation and simplify.
Tap for more steps...
4x2−20x+25=04x2-20x+25=0
Use the quadratic formula to find the solutions.
−b±√b2−4(ac)2a-b±b2-4(ac)2a
Substitute the values a=4a=4, b=−20b=-20, and c=25c=25 into the quadratic formula and solve for xx.
20±√(−20)2−4⋅(4⋅25)2⋅420±(-20)2-4⋅(4⋅25)2⋅4
Simplify.
Tap for more steps...
x=52x=52
The final answer is the combination of both solutions.
x=52x=52 Double roots
