Question
Find the roots
x1=813−1721,x2=813+1721
Alternative Form
x1≈−3.560617,x2≈6.810617
Evaluate
(4x2)−13x−97
To find the roots of the expression,set the expression equal to 0
(4x2)−13x−97=0
Multiply the terms
4x2−13x−97=0
Substitute a=4,b=−13 and c=−97 into the quadratic formula x=2a−b±b2−4ac
x=2×413±(−13)2−4×4(−97)
Simplify the expression
x=813±(−13)2−4×4(−97)
Simplify the expression
More Steps

Evaluate
(−13)2−4×4(−97)
Multiply
More Steps

Multiply the terms
4×4(−97)
Rewrite the expression
−4×4×97
Multiply the terms
−1552
(−13)2−(−1552)
Rewrite the expression
132−(−1552)
If a negative sign or a subtraction symbol appears outside parentheses, remove the parentheses and change the sign of every term within the parentheses
132+1552
Evaluate the power
169+1552
Add the numbers
1721
x=813±1721
Separate the equation into 2 possible cases
x=813+1721x=813−1721
Solution
x1=813−1721,x2=813+1721
Alternative Form
x1≈−3.560617,x2≈6.810617
Show Solution
