0 (-3)+3=0
7x2-10x+3=0 (7x-3)(x-1)=0
9+7+5+3+1 16+5+3+1 21+3+1 24+1 25
Zero
2x^2 + 8x + 3 = 0
x2+4x+4 = 25 x2+4x+4-25 = 0 x2+4x-21 = 0 (x+7)(x-3) = 0 x = -7 or x = 3
Discriminant = (b2-4ac) = (25 - 4x2x3) = 1
99... without using a calculator !
25
3 + 25 = 28
0 (-3)+3=0
3+4=7+0=7
6 or snowman
0+3=3
Is this 3*sqrt((x+25)*x)=0 or 3*sqrt(x+25x)=0 or 3*sqrt(x)+25x=0 or 3*sqrt(x+25)*x=0? I'm not going to bother answering all possible interpretations, but here's a hint: square the equation to get rid of the square root operation first. Then solving it will be easy.
9
0+0+2=2 2 divided by 3 = 2/3