(a+b)^2=a^2+b^2+2ab
it should read "the quanitity "a plus b" squared equals a squared plus b squared plus two a times b"
See related link below for a picture that shows it graphically.
a square plus 2ab plus b square
(A+B)2 = (A+B).(A+B) =A2+AB+BA+B2 =A2+2AB+ B2 So the Answer is A + B the whole square is equal to A square plus 2AB plus B square. Avinash.
let, equation is ax2+bx+c=0 so, its solution will be x= (-b-sqrt(b*b-4ac))/2a x= (-b+sqrt(b*b-4ac))/2a it is generalized equation for finding roots of Quadratic eq.
(a+b)cube = a cube + b cube + 3a square b + 3ab square
1.774225a
The roots are (if the equation is of the form Ax2 + Bx + C = 0 ((-B) + Square Root of (B2 - 4xAxC)) / 2xA and ((-B) - Square Root of (B2 - 4xAxC)) / 2xA
A single equation such as the one in the question cannot be solved.
For example if the question was √36 + √25 and the other was√36 +25 but the square root line was across the whole equation would it change the answer? And what would be the answer for both of them?
'a' minus 'b' whole cube is equal to 'a cube' minus 'b cube' minus (3 a square b ) plus (3 a b square) . .. .....thanks
You never square a whole equation. That's just silly.
(a-b)2 = a2 _ 2ab+b2
The quadric equation is: negative b plus or minus the square root of b squared minus 4ac all over(divided by) 2a