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3 years ago

Sole the equation for X

Mathematics

2 answers:

-BARSIC- [3]3 years ago

8 0

Answer:

Let's solve your equation step-by-step.

−2x=

Step 1: Divide both sides by -2.

−2x

−2

−1

Step-by-step explanation:

musickatia [10]3 years ago

7 0

Answer:

-1/6

Step-by-step explanation:

-2x÷(-2)=1/3÷(-2)

x=1/3÷(-2)

x= 1/3*1/2

x=-1/6

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3 years ago

Isosceles Right Triangle Reflection to prove ASA Congruence

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3 years ago

If x^3+ax^2-18x+b = (x+5)(x-4)(x+2) what is a and b

blondinia [14]

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$(x + 5)(x - 4)(x + 2) =$

$(x + 5) ({x}^{2} - 2x - 8) =$

${x}^{3} - 2 {x}^{2} - 8x + 5 {x}^{2} - 10x - 40 = \\$

${x}^{3} + 3 {x}^{2} - 18x - 40$

_________________________________

Compare :

${x}^{3} + 3 {x}^{2} - 18x - 40$

${x}^{3} + a {x}^{2} - 18x + b$

Thus :

$a = 3$

and

$b = - 40$

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