mashaCollsarobinem
contestada

Which equation could be used to solve the following system?

x+y=11
4x^2-3y^2=8



A. 4(y + 11)2 – 3y2 = 8

B. 4(11 – y)2 – 3y2 = 8

C. 4(y – 11)2 – 3y2 = 8

D. 4(–11y)2 – 3y2 = 8

Respuesta :

I hope this helps you




x=11-y




4. (11-y)^2-3y^2=8
calculista

we have

[tex]x+y=11[/tex]

[tex]x=11-y[/tex] --------> equation A

[tex]4x^{2} -3y^{2}=8[/tex] ----> equation B

Substitute equation A in equation B

[tex]4(11-y)^{2} -3y^{2}=8[/tex]

therefore

the answer is the option B

[tex]4(11-y)^{2} -3y^{2}=8[/tex]