Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation 4-6*(x+2)=3-5*x
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Equation 1/(x-3)^2-3/(x-3)-4=0
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Equation -25-x=-17
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Equation (x-2)/(x-7)=5/8
- Express {x} in terms of y where:
- 6*x+17*y=3
- 20*x+7*y=-9
- -18*x-2*y=9
- 6*x-9*y=18
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Identical expressions
- (x+ ten)²=(five -x)²
- (x plus 10)² equally (5 minus x)²
- (x plus ten)² equally (five minus x)²
- x+10²=5-x²
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Similar expressions
- (x+10)²=(5+x)²
- 13²-x²=14²-(15-x²)
- 2x³(x²-3x+5)-x²(2x³-6x²+3)+x(3x-10x²-7)-28=0
- (x²-4)/5-(x²-1)/3=-1
- (x-6)²=(15-x)²
- (x²-8x+10)²=(x²-2x+2)²
- (x-10)²=(5-x)²
(x+10)²=(5-x)² equation
The teacher will be very surprised to see your correct solution 😉
The solution
Detail solution
Given the equation:
Expand expressions:
Reducing, you get:
Move free summands (without x)
from left part to right part, we given:
$$30 x = -75$$
Divide both parts of the equation by 30
We get the answer: x = -5/2
(x+10)^2 = (5-x)^2
Expand expressions:
100 + x^2 + 20*x = (5-x)^2
(x+10)^2 = 25 + x^2 - 10*x
Reducing, you get:
75 + 30*x = 0
Move free summands (without x)
from left part to right part, we given:
$$30 x = -75$$
Divide both parts of the equation by 30
x = -75 / (30)
We get the answer: x = -5/2
Sum and product of roots
[src]
sum
-5/2
$$- \frac{5}{2}$$
=
-5/2
$$- \frac{5}{2}$$
product
-5/2
$$- \frac{5}{2}$$
=
-5/2
$$- \frac{5}{2}$$
-5/2
The graph