2 years ago

Can you add variables with different exponents

Mathematics

1 answer:

77julia77 [94]2 years ago

5 0

I’m not 100 on this, but I THINK u can I’m not sure but hope this helps :)

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Please help me ASAP?!!

Blababa [14]

Answer:

(0,-5) and (-4,3)

Step-by-step explanation:

The given equations are

$\left \{ {{x^2+y^2=25} \atop {2x+y=-5}} \right.$

Make y the subject in the second equation;

$y=-2x-5$

Substitute into the first equation;

$x^2+(-2x-5)^2=25$

Expand:

$x^2+4x^2+20x+25=25$

$x^2+4x^2+20x+25-25=0$

$5x^2+20x=0$

$5x(x+4)=0$

$\Rightarrow x=0,x=-4$

When x=0,

$y=-2(0)-5=-5$

This gives; (0,-5)

When x=-4

$y=-2(-4)-5=3$

This gives (-4,3)

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2 years ago

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tensa zangetsu [6.8K]

Answer:

y= 2x - 19/3

Step-by-step explanation:

6x-3y=19

3y=6x-19

y=2x- 19/3

slope: 2

y-intercept: -19/3

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2 years ago

Specify the domain for the function ƒ(x) = 2x4 + 4x3 + 2x2

Kipish [7]

Answer:

In interval notation it is ( -∞, ∞).

Step-by-step explanation:

All values of x can be input to this function.

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अभ्यास 7<br>खण्डीकरण गर्नुहोस् :<br>1.y+y2 +1

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Answer:

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a-c=2a
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-c=a

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2 years ago

Can you add variables with different exponents ​

Can you add variables with different exponents