4y + 10 = 22 4y - 10 - 10 4y=12 4y 4y 4y=3
Like terms are terms with the same variable to the same power. Examples: 2y and 3y are like terms. 2y and 2z are not like terms 4y squared and 3y squared are like terms 4y squared and 3y are not like terms
9y cubed plus 2y squared
If: x -y = 2 then x^2 = y^2 +4y +4 If: x^2 -4y^2 = 5 then x^2 = 4y^2 +5 So: 4y^2 +5 = y^2 +4y +4 Transposing terms: 3y^2 -4y +1 = 0 Factorizing the above: (3y -1)(y -1) = 0 meaning y = 1/3 or y = 1 Substitution into the original linear equation intersections are at: (7/3, 1/3) and (3, 1)
9a squared = 81a^2
This equation does not equal a number, but it can be factorised. x2-xy-20y2=(x-5y)(x+4y)
The answer to x2 - 2x - 4y2 - 4y =(x - 2y)(x - 2y - 2)
This is a difference of two squares, which factorises to: (3x - 4y)(3x + 4y)
(5x - 2y)(5x + 2y)
No, it equals 4y2
4y + 10 = 22 4y - 10 - 10 4y=12 4y 4y 4y=3
(x + 4y)(x - 6y)
4(x+y)^2
4y = 929 4y/4 = 929/4 y = 232.25
plot 4y then 3x
Like terms are terms with the same variable to the same power. Examples: 2y and 3y are like terms. 2y and 2z are not like terms 4y squared and 3y squared are like terms 4y squared and 3y are not like terms
x = ±2