Algebra
Calculus
Trigonometry
Matrix
Question
Simplify the expression
−48
Evaluate
(x2−7x)×2−2(x2−7x)−48
Multiply the terms
2(x2−7x)−2(x2−7x)−48
Expand the expression
More Steps
Calculate
2(x2−7x)
Apply the distributive property
2x2−2×7x
Multiply the numbers
2x2−14x
2x2−14x−2(x2−7x)−48
Expand the expression
More Steps
Calculate
−2(x2−7x)
Apply the distributive property
−2x2−(−2×7x)
Multiply the numbers
−2x2−(−14x)
If a negative sign or a subtraction symbol appears outside parentheses, remove the parentheses and change the sign of every term within the parentheses
−2x2+14x
2x2−14x−2x2+14x−48
The sum of two opposites equals 0
More Steps
Evaluate
2x2−2x2
Collect like terms
(2−2)x2
Add the coefficients
0×x2
Calculate
0
0−14x+14x−48
Remove 0
−14x+14x−48
The sum of two opposites equals 0
More Steps
Evaluate
−14x+14x
Collect like terms
(−14+14)x
Add the coefficients
0×x
Calculate
0
0−48
Solution
−48
Show Solution
Find the roots
x∈∅
Evaluate
(x2−7x)×2−2(x2−7x)−48
To find the roots of the expression,set the expression equal to 0
(x2−7x)×2−2(x2−7x)−48=0
Multiply the terms
2(x2−7x)−2(x2−7x)−48=0
Subtract the terms
0−48=0
Removing 0 doesn't change the value,so remove it from the expression
−48=0
Solution
x∈∅
Show Solution