The values of x and y for the system of linear equations: y=2x-

korporasidn

korporasidn

Answered question

2021-11-22

The values of x and y for the system of linear equations:
y=2x4
y2=4x

Answer & Explanation

Rosemary McBride

Rosemary McBride

Beginner2021-11-23Added 10 answers

Step 1
Putting the value of y from (1) in (2)
(2x4)2=4x
4x2+1616x=4x
4(x2+44x)=4x
((a±b)2=a2+b2±2ab) x2+44x=x
x25x+4=0
x24xx+4=0
x(x4)1(x4)=0
(x4)(x1)=0
Either x4=0 or x1=0
Either x=1 or x=4
Putting the value of x in (2)
y2=4(1)=4
y=±2
y2=4(4)=16
y=±4

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