Question

Please, factor this :

**9x ^{2}+24xy-16y^{2}**

Answer #1

Equation should be like 9X^{2}
+24XY*i-16Y^{2}

Or like 9X^{2} +24XY+16Y^{2}

Please check. Given Answer is for 2nd form

If the equation is in 1st form, i.e., (b^2)=-16, replace b=4 with 4i

Describe the surface 9x2 +
4y2 + z2 = 1

Find the relative maximum and minimum values.
f(x,y)=x^3+y^3−24xy

Q1. Find the an
in the Fourier series expansion of the
function
?(?) = 9x2 + 7 sin(M?) defined over
the interval (−?, ?).

Find all local maximum or local minimum or saddle point for f(x,y)=
8y^3 + 12x^2 -24xy

f(x,y)= (3x^2)+(4y^3)-24xy+29
does this have a local max or min or both? does it have a
critical point?

Let X and Y be two random variables having the joint probability
density fxy= 24xy for 0<x<1, 0<y<1,
0<x+y<1, o elsewhere. Find the joint probability density of Z
= X + Y, and W = 2Y

Factor Please show steps and method used to factor
x3+x2+3x-5

Write the equations in cylindrical coordinates.
9x2 − 3x + 9y2 + z2 = 9
// I keep getting z^2=9-3r(3r-cos (theta))

Solve for all 4-tuples (x1, x2, x3, x4) simultaneously
satisfying the following equations:
8x1 −9x2 −2x3 −5x4 = 100
9x1 +6x2 −6x3 +9x4 = 60
−3x1 −9x2 +4x3 −2x4 = −52
−7x2 +8x3 +8x4 = −135

Find f by solving the initial-value problem.
(a.) f '(x) = 9x2 + 2x − 7; f(2) = 6
(b.)
f '(x) =
3ex −
4x; f(0) = 6

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