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Q: 4x plus y-6 equals 0

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x = -½

many solutions

x + 4x = 05x = 0x = 0/5x = 0

No.

16x2 + 8x + 1 = 0 : This factorises to (4x + 1)(4x + 1) = 0 When 4x + 1 = 0 then 4x = -1 : x = -1/4.

4x+7=9x+7 -5x=0 x=0

x^2+4x+7

4(x + 1) = 0.

8 + y = 4x8 + y - 4x = 4x - 4x 8 + y - 4x = 0 8 - 4x + y = 0

4x-y+7=0

4x + 3y=9 x=0 y=3

x2 + 4x + 3 = 0 (x + 1)(x + 3) = 0 x ∈ {-3, -1}

(-1, 2)

2*2+4x-9=0 4x=9-4 4x=5 x=5/4

x-intercept of y equals -4x plus 4 y = -4x + 4 0 = -4x + 4 -4 = -4x 1 = x So 1 is the x-intercept

x2 + 4x = 0 ⇒ x(x + 4) = 0 ⇒ x = 0 or x = -4

(6, 0) and (0, 8)

x2+4x+4 = 25 x2+4x+4-25 = 0 x2+4x-21 = 0 (x+7)(x-3) = 0 x = -7 or x = 3

2x + 2x + 146 + 26 = 172 4x + 172 = 172 4x = 0 x = 0

(2,1)

y = -4x + 4 x intercept is where y = 0 0 = -4x +4 4x = 4 x = 1

-((4x + 1)(x - 1))

4x+2y-8=0 2y=8-4x y=4-2x slope= -2

2x - 4x + 3 = 0 -2x + 3 = 0 2x = 3 x = 3/2 = 1.5

x = 3 and y = 0