The product of 2x and x -3y is
2x2 - 3y
x - 6xy
2x2 - 6xy
2x - 6xy
x2 + (a + b)x + ab =
(a - b)2
(x + a)(x - b)
(a + b)2
(x + a)(x + b)
An expression which contains two more terms of the variable are called
Monomial
Binomial
Trinomial
Polynomial
a3 × 4 a21 × 5a25 =
20 a49
10 a25
20 a41
20 a38
(x + a) (x + b) =
x2 + abx + ab
x2 + (a + b)x + ab
x2 + (a + b) x + a + b
None of these
(4/3 m + 3/4 x) (4/3 m - 3/4 x) =
16/9 k2 - 9/6m2
9/16 m2 - 16/9 x2
16/9m2 - 9/16 x2
5x2 yz3 + 4xy2 z4 + 7xy - 4yz. In this expression what is the coefficient of yz
4
5
-4
7
Add 2a (b - c + a), 2b (b - c - a) and 2c (a + b - c)
2a + 2b + 2c
2a2 + 2b2 - 2c2
2a2 + 2b2 + 2c2
2a + 2b - 2c
Which of the following is a polynomial expression?
a + 2b
x + y + z + 7
2xy
2a + 3b + 4a
How may terms are there in the expression (2/3x - y)2 ?
1
2
3
