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marin [14]
3 years ago
6

Solve the system of equations​

Mathematics
1 answer:
Solnce55 [7]3 years ago
5 0

Hey, there!!

Given that:

y = 3x.........(i)

y =  {x}^{2}  + 3x - 16.......(ii)

Putting the value of y in equation (ii)

{3x}^{} =  {x}^{2}  + 3x - 16

{x }^{2}  - 16=0

( {x)}^{2}  -  {4}^{2}  = 0

(x + 4)(x - 4) = 0

Therefore,

Either Or

(x+4)=0 (x-4)=0

x= -4 x= 4

so, x= (+ -)4

And if you wanna get value of y, just keep value of x in equation (i).

y= 3x

y= (3×4) or (3×-4)

y= 12 or -12

{As it is the quadratic equation it has two values. }

<em><u>Hope it helps</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em>

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