x2y + 2xy2 ̶ 2x2y + 5xy2 =?
a) 4x2y + 7xy2
b)2x4y2 + 7x2y4
c) ̶ xy (x ̶ 7y)
d)xy(x+2y+3x ̶5)
If we add 3x2 + 5x and 6x2 + 2x =?
a) 9x4 + 7x2
b)18x2 + 10x
c) x(9x + 7)
d) 9(x2 +7)
If we subtract 3x2 + 4x + 5 from 6x2 ̶ 7x + 7.
a) ̶ 3x2 + 11x ̶ 2
b) 3x2 ̶ 11x + 2
c) 9x2 ̶ 3x + 12
d) None of these
If x=1, y=2 and z= ̶ 1 then the value of
(x+y)2 ̶ (y ̶ z)2 is………….
a) 10
b) 0
c) 12
d) 14
In algebra, a fixed or unchanged value is called a..........
a) constant
b) variable
c) coefficient
In 3x2, 2 is the……….
a) constant
b) exponent
c) coefficient
