Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation cos(x)=1/3
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Equation sin5x-√3cos5x=0
- Equation (√x-6)(2x^2-x-15)=0
- Equation Cos3xcos5x-sin3xsin5x=0
- Express {x} in terms of y where:
- -11*x+4*y=-8
- -14*x+1*y=3
- 14*x+16*y=14
- 16*x+7*y=8
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Identical expressions
- (√x- six)(two x^2-x- fifteen)= zero
- (√x minus 6)(2x squared minus x minus 15) equally 0
- (√x minus six)(two x squared minus x minus fifteen) equally zero
- (√x-6)(2x2-x-15)=0
- √x-62x2-x-15=0
- (√x-6)(2x²-x-15)=0
- (√x-6)(2x to the power of 2-x-15)=0
- √x-62x^2-x-15=0
- (√x-6)(2x^2-x-15)=O
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Similar expressions
- (√x-6)(2x^2+x-15)=0
- (√x-6)(2x^2-x+15)=0
- (√x+6)(2x^2-x-15)=0
(√x-6)(2x^2-x-15)=0 equation
The teacher will be very surprised to see your correct solution 😉
The solution
You have entered
[src]
/ ___ \ / 2 \ \\/ x - 6/*\2*x - x - 15/ = 0
$$\left(\sqrt{x} - 6\right) \left(\left(2 x^{2} - x\right) - 15\right) = 0$$
Sum and product of roots
[src]
sum
3 - 5/2 + 36
$$\left(- \frac{5}{2} + 3\right) + 36$$
=
73/2
$$\frac{73}{2}$$
product
3*(-5) ------*36 2
$$36 \frac{\left(-5\right) 3}{2}$$
=
-270
$$-270$$
-270
Rapid solution
[src]
x1 = -5/2
$$x_{1} = - \frac{5}{2}$$
x2 = 3
$$x_{2} = 3$$
x3 = 36
$$x_{3} = 36$$
x3 = 36
Numerical answer
[src]
x1 = -2.5
x2 = 3.0
x3 = 36.0
x4 = -2.5 - 3.19181816302611e-19*i
x5 = -2.50000000000002 - 1.34908062879273e-15*i
x6 = -2.5 + 3.29399761602204e-17*i
x6 = -2.5 + 3.29399761602204e-17*i