Multiply: (x + 4)(2x - 5)
2x2 + 3x - 20
2x2 - 3x + 20
2x2 + 3x + 20
None of these
Simplify: 2m3 - 5m2 + 3m - 6 - 5m3 + 2m2 - 8m - 2 + 6m + 10
-3m3 - 3m2 + m + 2
3m3 + 8m2 - m - 2
-3m3 + 3m2 - m + 2
-3m3 - 3m2 + m - 2
If length of the rectangle is mn and breadth is 3mn, then its area is
4mn
3m2n2
4m2n2
3mn
The product of -2x2y2 and -7x3y3
-14x6y6
+14x6y6
14x5y5
9x6y6
601 × 602 =
361521
361802
362571
301879
Multiply (x - 4) and (2x + 7)
2x2 + x + 28
x2 - x - 28
2x2 - x - 28
x2 + x + 28
An expression which contains only one term is called
Monomial
Binomial
Trinomial
Polynomial
Which of the following is a polynomial expression?
a + 2b
x + y + z + 7
2xy
2a + 3b + 4a
An expression which contains two more terms of the variable are called
Find the value of 2ab (a + b) - 3ab (a - b) when a = 1, b = 2
18
16
14
12