Simplify a(a2 + a - 1) + 7
a3 + a2 - 1 + 7
a3 + a2 - a + 7
a3 - a2 - a + 7
a3 - a2 + a + 7
Simplify a3 (b3 - c3) + b3 (c3 - a3) + c3 (a3 - b3)
3a3b3
a3b3c3
1
0
(x + a) (x + b) =
x2 + abx + ab
x2 + (a + b)x + ab
x2 + (a + b) x + a + b
None of these
What is the value of (704)2 - (297)2
4,07,607
4009
47,407
4,07,407
When 5xy is multiplied by 3x, we get
15xy
15xy2
15x2y
The product of 2x and x -3y is
2x2 - 3y
x - 6xy
2x2 - 6xy
2x - 6xy
Add 5a3, -3a3, -1/2a3
2/3 a3
4/3 a3
-2/3 a3
3/2 a3
The factors of a2 - b2 are
(a + b) (a - b)
(a2 - b2) × 1
(a - b) (a - b)
Multiply (x - 4) and (2x + 7)
2x2 + x + 28
x2 - x - 28
2x2 - x - 28
x2 + x + 28
972 =
9309
9009
9209
9409
