The expansion of (x - 3)(x + 4) is:
x² − x − 12.
x² + x + 1.
x² + x - 12.
x² + x − 7.
The equation x(x + 2) - 3(x + 2) has solution(s):
(-3, -2).
(2).
(-3, 2).
(3, -2).
Given that (x − 2) is a factor of f(x) = x² - kx + 4,
the value of k is
5.
0.
4.
-4.
The number of factors in the expression (x + 1)(x + 2) is:
3.
2.
1.
The expression x2 - (2x - 3)(2x + 3) when expanded and simplified gives:
3(3 + x²).
(3 + x)(3 - x).
-3(3 + x²).
3(3 - x²).
