The expression x2 - (2x - 3)(2x + 3) when expanded and simplified gives:
3(3 + x²).
-3(3 + x²).
(3 + x)(3 - x).
3(3 - x²).
Given that (x − 2) is a factor of f(x) = x² - kx + 4,
the value of k is
5.
0.
4.
-4.
The graph of the function f(x) = 2x² - 3x - 2 has:
A maximum turning point.
A minimum turning point.
No turning point.
Both maximum and minimum turning points.
The number of factors in the expression (x + 1)(x + 2) is:
3.
1.
2.
In the expression 3x² - 15x, the common factor is:
5x.
3x.
3².
