identity
3 x 7 + 0 = 21
x = 3 and y = 0
10x2 +4x + 21 = 0=> 4*x +10*x^2 +21 = 0Complex roots:Root 1: -0.2-1.435 * iRoot 2: -0.2+1.435 * i
(21-21)+(21-21)+21 = 0+0+21 = 21
identity
3 x 7 + 0 = 21
x = 3 and y = 0
15z+5+6z=0 21z+5=0 z=-5/21
3
10x2 +4x + 21 = 0=> 4*x +10*x^2 +21 = 0Complex roots:Root 1: -0.2-1.435 * iRoot 2: -0.2+1.435 * i
(21-21)+(21-21)+21 = 0+0+21 = 21
Yes because if 1+0=1 than 0 plus b equals b
x2 + 8x - 5 = 0 ∴ x2 + 8x + 16 = 21 ∴ (x + 4)2 = 21 ∴ x + 4 = ± √21 ∴ x = -4 ± √21
The y-intercept of that line is the point (0, 21).
7y+3x-21 =0 7y = -3x+21 y = -3/7x+3 The y intercept is 3
A=0 b=0 c=0