Substitute a=5,b=−3 and c=−4 into the quadratic formula x=2a−b±b2−4ac
x=2×53±(−3)2−4×5(−4)
Simplify the expression
x=103±(−3)2−4×5(−4)
Simplify the expression
More Steps
Evaluate
(−3)2−4×5(−4)
Multiply
More Steps
Multiply the terms
4×5(−4)
Rewrite the expression
−4×5×4
Multiply the terms
−80
(−3)2−(−80)
Rewrite the expression
32−(−80)
If a negative sign or a subtraction symbol appears outside parentheses, remove the parentheses and change the sign of every term within the parentheses