3 years ago

What are all the solutions? 4x^2+9y^2=72 x^2+y^2=5

2 answers:

8 0

(3,2) (3,-2) (-3,2) (-3,-2)

Ilya [14]3 years ago

4 0

There is no solution.
If you graph both equations they never touch.

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RSB [31]

Well...
0.08
X 10
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????

0.80

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3 years ago

Ilia_Sergeevich [38]

Yeah It Would

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3 years ago

andrew11 [14]

He gave away 8 so he would have 12/20 which is 60% left :)

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2 years ago

Nitella [24]

The problem is the number by the side

7 0

3 years ago

Liono4ka [1.6K]

Answer:

$x = \frac{-9}{8} , \frac{-10}{7} , \frac{10}{7}$

Step-by-step explanation:

8x+9=0

8x=-9

$x = \frac{-9}{8}$

$49x^{2}-100 = 0$

$(7x)^{2} -10^{2} =0$ ,

$(7x+10)(7x-10)=0$

$7x+10=0, 7x-10=0$

$7x=-10, 7x=10$

$x=-\frac{-10}{7}$ , $x = \frac{10}{7}$

4 0

2 years ago