(7 + 15)2 =
461
498
484
477
20x2 × 5y2 =
100 x2y2
25 x2y2
50xy2
25x2y
a3 × 4 a21 × 5a25 =
20 a49
10 a25
20 a41
20 a38
5x2 yz3 + 4xy2 z4 + 7xy - 4yz. In this expression what is the coefficient of yz
4
5
-4
7
Simplify a3 (b3 - c3) + b3 (c3 - a3) + c3 (a3 - b3)
3a3b3
a3b3c3
1
0
-11x + (-6x) - (-9x) + (-3x) =
-11x
11x
12x
-12x
An expression which contains two more terms of the variable are called
Monomial
Binomial
Trinomial
Polynomial
Multiply: (x + 4)(2x - 5)
2x2 + 3x - 20
2x2 - 3x + 20
2x2 + 3x + 20
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
601 × 602 =
361521
361802
362571
301879