Question
Find the roots
x1=49−273,x2=49+273
Alternative Form
x1≈−1.880678,x2≈6.380678
Evaluate
2x2−9x−24
To find the roots of the expression,set the expression equal to 0
2x2−9x−24=0
Substitute a=2,b=−9 and c=−24 into the quadratic formula x=2a−b±b2−4ac
x=2×29±(−9)2−4×2(−24)
Simplify the expression
x=49±(−9)2−4×2(−24)
Simplify the expression
More Steps

Evaluate
(−9)2−4×2(−24)
Multiply
More Steps

Multiply the terms
4×2(−24)
Rewrite the expression
−4×2×24
Multiply the terms
−192
(−9)2−(−192)
Rewrite the expression
92−(−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
92+192
Evaluate the power
81+192
Add the numbers
273
x=49±273
Separate the equation into 2 possible cases
x=49+273x=49−273
Solution
x1=49−273,x2=49+273
Alternative Form
x1≈−1.880678,x2≈6.380678
Show Solution
