Solve the simultaneous equation x^2-4y^2=9 and x+2y=1

Mathematics

2 answers:

Salsk061 [2.6K]3 years ago

8 0

Answer:

x=5,y=-2

Step-by-step explanation:

Anna71 [15]3 years ago

3 0

Solve the simultaneous equation
x^2-4y^2=9 and x+2y=1

X=5, Y= -2

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5. f(x) = 3x³ - 4x² +6x and g(x)=5x ³+ 2x²- 3x. What is f(x) - g(x)?

sasho [114]

Answer:

Step-by-step explanation:

$f(x)=3x^3-4x^2+6x\\\\g(x)=5x^3+2x^2-3x\\\\f(x)-g(x)=(3x^3-4x^2+6x)-(5x^3+2x^2-3x)\\\\=3x^3-4x^2+6x-5x^3-2x^2-(-3x)\qquad\text{combine like terms}\\\\=(3x^3-5x^3)+(-4x^2-2x^2)+(6x+3x)\\\\=-2x^3-6x^2+9x$

8 0

3 years ago

I need help please.

kow [346]

Answer:

(2,1)

Step-by-step explanation:

the order of pair is 2,1

8 0

3 years ago

Read 2 more answers

<img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B1%7D%7B4%7Dx%2B%20%5Cfrac%7B1%7D%7B2%7D%3D%20%5Cfrac%7B1%7D%7B4%7Dx-%20%5Cfrac%7B

zimovet [89]

$\dfrac{1}{4}x + \dfrac{1}{2} = \dfrac{1}{4}x- \dfrac{1}{2}$

$\text{Cancel 1/4x on both sides}$

$\dfrac{1}{2}=-\dfrac{1}{2}$

$\text{There is no solution}$

3 0

3 years ago

Read 2 more answers

Need help solving this problem

natka813 [3]

Answer:

Part 1: $\frac{11-x}{5}$ or $\frac{11}{5}-\frac{x}{5}$

Part 2: $\frac{9}{5}$

Step-by-step explanation:

To start things off, you must put everything on the opposite side of y so that you only have the y variable left.

In this case, put x onto the other side, making it negative since it's flipped, so you get $5y=11-x$ (since the x is negative you're using subtraction from 11).