Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation (x+2)^4-4*(x+2)^2-5=0
- Equation x-y=2
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Equation x^3+2x^2-x-2=0
- Equation (x+20)*(-x+10)=0
- Express {x} in terms of y where:
- 15*x+7*y=2
- 12*x-20*y=10
- -17*x-15*y=-17
- 6*x-2*y=20
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Identical expressions
- four (x- eight)i- seven (x+ three)= zero
- 4(x minus 8)i minus 7(x plus 3) equally 0
- four (x minus eight)i minus seven (x plus three) equally zero
- 4x-8i-7x+3=0
- 4(x-8)i-7(x+3)=O
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Similar expressions
- 4(x-8)i-7(x-3)=0
- 4(x-8)i+7(x+3)=0
- 4(x+8)i-7(x+3)=0
4(x-8)i-7(x+3)=0 equation
The teacher will be very surprised to see your correct solution 😉
The solution
You have entered
[src]
4*(x - 8)*I - 7*(x + 3) = 0
$$- 7 \left(x + 3\right) + i 4 \left(x - 8\right) = 0$$
The graph
Sum and product of roots
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sum
19 308*I - -- - ----- 65 65
$$- \frac{19}{65} - \frac{308 i}{65}$$
=
19 308*I - -- - ----- 65 65
$$- \frac{19}{65} - \frac{308 i}{65}$$
product
19 308*I - -- - ----- 65 65
$$- \frac{19}{65} - \frac{308 i}{65}$$
=
19 308*I - -- - ----- 65 65
$$- \frac{19}{65} - \frac{308 i}{65}$$
-19/65 - 308*i/65
Rapid solution
[src]
19 308*I
x1 = - -- - -----
65 65
$$x_{1} = - \frac{19}{65} - \frac{308 i}{65}$$
x1 = -19/65 - 308*i/65
Numerical answer
[src]
x1 = -0.292307692307692 - 4.73846153846154*i
x1 = -0.292307692307692 - 4.73846153846154*i