Question
3(x−2)2×4=52
Solve the quadratic equation
Solve using the quadratic formula
Solve by completing the square
Solve using the PQ formula
x1=36−39,x2=36+39
Alternative Form
x1≈−0.081666,x2≈4.081666
Evaluate
3(x−2)2×4=52
Multiply the terms
12(x−2)2=52
Expand the expression
More Steps

Evaluate
12(x−2)2
Expand the expression
More Steps

Evaluate
(x−2)2
Use (a−b)2=a2−2ab+b2 to expand the expression
x2−2x×2+22
Calculate
x2−4x+4
12(x2−4x+4)
Apply the distributive property
12x2−12×4x+12×4
Multiply the numbers
12x2−48x+12×4
Multiply the numbers
12x2−48x+48
12x2−48x+48=52
Move the expression to the left side
12x2−48x−4=0
Substitute a=12,b=−48 and c=−4 into the quadratic formula x=2a−b±b2−4ac
x=2×1248±(−48)2−4×12(−4)
Simplify the expression
x=2448±(−48)2−4×12(−4)
Simplify the expression
More Steps

Evaluate
(−48)2−4×12(−4)
Multiply
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Multiply the terms
4×12(−4)
Rewrite the expression
−4×12×4
Multiply the terms
−192
(−48)2−(−192)
Rewrite the expression
482−(−192)
If a negative sign or a subtraction symbol appears outside parentheses, remove the parentheses and change the sign of every term within the parentheses
482+192
Evaluate the power
2304+192
Add the numbers
2496
x=2448±2496
Simplify the radical expression
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Evaluate
2496
Write the expression as a product where the root of one of the factors can be evaluated
64×39
Write the number in exponential form with the base of 8
82×39
The root of a product is equal to the product of the roots of each factor
82×39
Reduce the index of the radical and exponent with 2
839
x=2448±839
Separate the equation into 2 possible cases
x=2448+839x=2448−839
Simplify the expression
More Steps

Evaluate
x=2448+839
Divide the terms
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Evaluate
2448+839
Rewrite the expression
248(6+39)
Cancel out the common factor 8
36+39
x=36+39
x=36+39x=2448−839
Simplify the expression
More Steps

Evaluate
x=2448−839
Divide the terms
More Steps

Evaluate
2448−839
Rewrite the expression
248(6−39)
Cancel out the common factor 8
36−39
x=36−39
x=36+39x=36−39
Solution
x1=36−39,x2=36+39
Alternative Form
x1≈−0.081666,x2≈4.081666
Show Solution
