5x=4y=-20 x=-4 y=-5 (-4,-5) is the ordered pair
That factors to (x - 2)(x + 7)
It is, as stated, x2 - 5x + 25/4 = 0
(5x - 2y)(5x + 2y)
x2 - 4x - 5 = zero( x - 5 ) ( x + 1 ) = zerox - 5 = zero ...... X = 5x + 1 = Zero ...... X = -1
f(x) = x2 + 5x + 1 The roots of this equation are x = -0.2087 and x = -4.7913 (approx).
It is 5x2 - 20
The discriminant is 121.
Yes.
5x+1=20 5x=20-1 5x=19 5x/5=19/5 x=19/5
5x + 20 = 4x +30 5x - 4x = 30 - 20 x = 10
5x + 2 = 22 5x = 22 - 2 5x = 20 5x/5 = 20/5 x=4
5x * 18 = 201. /185x=1.111111112. /5x=0.2222222222
(x^2 - 4)(x^2 + 9) set to zero to see roots ( watch out for the surprise! )
x2 - 5x = 0Factor the left side:x (x - 5) = 0x = 0x = 5
5x=4y=-20 x=-4 y=-5 (-4,-5) is the ordered pair
(x-3)(x-2)