X= 102 • + (75) there you go
No solution / no x
D=b^2-4*a*c -> D=-4^2-4*1*21 -> D=-28 -> D<0, no solution
Answer:
Solving Steps
Use the quadratic formula
Multiply / Remove the parentheses / Evaluate
Calculate
Separate the solutions
Simplify
Answer:
1,100 is the answer.
Step-by-step explanation:
Since the difference of the subtraction problem is 1,103, when it is rounded, it becomes 1,100.
Given:
The function, f(x) = -2x^2 + x + 5
Quadratic equation: 0 = -2x^2 + x +5
where a = -2
b = 1
c = 5
The discriminate b^2 - 4ac = 41
To solve for the zeros of the quadratic function, use this formula:
x = ( -b +-√ (b^2 - 4ac) ) / 2a
x = ( 1 + √41 ) / 4 or 1.85
x = ( 1 - √41 ) / 4 or -1.35
Therefore, the zeros of the quadratic equation are 1.85 and -1.35.
