Two.
x = + i sqrt(8.4)
x = - i sqrt(8.4)
6x2-2x+36 = 5x2+10x 6x2-5x2-2x-10x+36 = 0 x2-12x+36 = 0 (x-6)(x-6) = 0 x = 6 or x = 6 It has two equal roots.
The discriminant is 385.
If y = 2x+1 is a tangent line to the circle 5y^2 +5x^2 = 1 then the point of contact is at (-2/5, 1/5) because it has equal roots
If 5x plus 3y equals 13, the x equals 2 and y equals 1. This is because 5x2=10 and 3x1=3, and 10+3=13.
In one word 'NO' Since it is and 'x^(2)' term, this will make a parabolic curve, not linear (straight line).
6x2-2x+36 = 5x2+10x 6x2-5x2-2x-10x+36 = 0 x2-12x+36 = 0 (x-6)(x-6) = 0 x = 6 or x = 6 It has two equal roots.
The discriminant is 385.
5x2 - 20 = 0x2 - 4 = 0x2 = 4x = +2 and -2
If y = 2x+1 is a tangent line to the circle 5y^2 +5x^2 = 1 then the point of contact is at (-2/5, 1/5) because it has equal roots
(5 + or - sqrt 5)/10 ie 0.276 or 0.723
If 5x plus 3y equals 13, the x equals 2 and y equals 1. This is because 5x2=10 and 3x1=3, and 10+3=13.
False
In one word 'NO' Since it is and 'x^(2)' term, this will make a parabolic curve, not linear (straight line).
All six of them
5x2+7x = 12 5x2+7x-12 = 0 (5x+12)(x-1) = 0 x = -12/5 or x = 1
5x2 + 9x + 4 = (x + 1)(5x + 4).
X= (3/5 , -2)