# how to solve Descartes Rule of Signs and Facotr Theorem

How many positive real roots and negative roots does this problems have, 1. f(a) = a^5 - 4a^2 - 7 2. f(x) = 3x^3...

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How many positive real roots and negative roots does this problems have, 1. f(a) = a^5 - 4a^2 - 7 2. f(x) = 3x^3...

1. use synthetic division to divide x^4 + 4x^3 + 6x^2 + 4x + 1 by x + 1 2. use synthetic substitution to find the value of f(-2) for f(x) = x^3 - 3x^2...

1.what is the sum of the roots of the equation ax^2 + bx + c = 0 what is the product of its roots 2. solve the equation...

using x^3 - 4x^2 + 2x + 1 = 0 1. how many possible positive roots are there 2. how many possible negative roots are there 3. ...

1. if y varies directly with x and y = 10 when x - 15, find y when x = 6 2. if x varies inversely as y and x = 2 when y = 8, find x when y = 17 3...

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How many quarts of pure antifreeze must be added to 9 quarts of a 20% antifreeze solution to obtain a 30% antifreeze solution?

[7,-5, 2, -4, 9, -4, 0, 6, 10]

Altitude The angles of elevation to an air plane from two points A and B on level ground are 71° and 88°,respectively .The points A and B are 5.5 miles apart and the airplaine is east if both points...

matrix A= [3,-2, 0,5] matrix B=[1,7,4,2,3,1]

-5x+7y=11 -5x+3y=19 multiply bottom equation by -1 -5x+7y=11 5x-3y= -19 4y=-8 y=-4 -5 (-4) +7y=11 20 + 7y=...

1) x=3-2t y=2+3t 2) x=sqrt(t) y=1-t 3) x=4+2cos(theta) y=1+2sin(theta) 4)...

its in geometry

Hi! I am having some trouble doing a combinations problem, which is stated below: How many committees of five people can be selected from 8 men and 8 women if the committee must have...

Please help simplify these expressions: 1. √a + √b √a - √b 2. √5 + 1 √5 - 1 3...

what forces will turn a turbine of a generator?

How many protons neutrons and electrons does cs-138 Cs - 138 w + + +

3(t2)-2 -----------(fraction) t-5

y=-3x-6;(-1, 5)

simplify the expression

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