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Pls help im so stuck its really urgent

Pls help im so stuck its really urgent-example-1

1 Answer

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Answer:

i) x ≈ -0.2 or x ≈ 1.2

ii) x ≈ -0.5 or x ≈ 1.5

Explanation:

y = 4x^2-4x-1

that means 4x^2-2-4x-1 can be also considered as y

so 4x^2-2-4x-1 = 0 can be considered as y = 0

same goes to 4x^2-2-4x-1 = 2 which is considered as y = 2

since y = 0 and y = 2

we draw a horizontal like at y = 0 and y = 2

then you can determine which points the blue drawn parabola touches the horizontal line drawn

the co-ordinates would be written in (x,y)

i) (-0.2,0) and (1.2,0)

ii) (-0.5,2) and (1.5,2)

Pls help im so stuck its really urgent-example-1
User Lovababu Padala
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