Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation x^2+9=(x+9)^2
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Equation cos(x)=-1
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Equation 3*x+50=77
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Equation 5-2(x-1)=4-x
- Express {x} in terms of y where:
- 10*x+5*y=-17
- 14*x+16*y=-3
- -19*x+1*y=0
- 9*x-4*y=2
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Identical expressions
- (sqrt(x)- three)*(two *x^ two + three *x- five)= zero
- ( square root of (x) minus 3) multiply by (2 multiply by x squared plus 3 multiply by x minus 5) equally 0
- ( square root of (x) minus three) multiply by (two multiply by x to the power of two plus three multiply by x minus five) equally zero
- (√(x)-3)*(2*x^2+3*x-5)=0
- (sqrt(x)-3)*(2*x2+3*x-5)=0
- sqrtx-3*2*x2+3*x-5=0
- (sqrt(x)-3)*(2*x²+3*x-5)=0
- (sqrt(x)-3)*(2*x to the power of 2+3*x-5)=0
- (sqrt(x)-3)(2x^2+3x-5)=0
- (sqrt(x)-3)(2x2+3x-5)=0
- sqrtx-32x2+3x-5=0
- sqrtx-32x^2+3x-5=0
- (sqrt(x)-3)*(2*x^2+3*x-5)=O
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Similar expressions
- (sqrt(x)-3)*(2*x^2-3*x-5)=0
- (sqrt(x)+3)*(2*x^2+3*x-5)=0
- (sqrt(x)-3)*(2*x^2+3*x+5)=0
(sqrt(x)-3)*(2*x^2+3*x-5)=0 equation
The teacher will be very surprised to see your correct solution 😉
The solution
You have entered
[src]
/ ___ \ / 2 \ \\/ x - 3/*\2*x + 3*x - 5/ = 0
$$\left(\sqrt{x} - 3\right) \left(2 x^{2} + 3 x - 5\right) = 0$$
Sum and product of roots
[src]
sum
0 - 5/2 + 1 + 9
$$\left(\left(- \frac{5}{2} + 0\right) + 1\right) + 9$$
=
15/2
$$\frac{15}{2}$$
product
1*-5/2*1*9
$$1 \left(- \frac{5}{2}\right) 1 \cdot 9$$
=
-45/2
$$- \frac{45}{2}$$
-45/2
Numerical answer
[src]
x1 = -2.5
x2 = 9.0
x3 = 1.0
x4 = -2.5 + 1.9301438452429e-19*i
x4 = -2.5 + 1.9301438452429e-19*i
The graph