In the expression 2x(5 − 3x) the coefficient of x is:
10.
4.
-6.
16.
The value of x in the equation 22x = 8 is:
2/3.
3/2.
2.
Simplify: (a + b)².
a² + 2ab + b².
a² + (ab)² + b².
2a + 2ab + 2b.
Simplifying 8a + 3 + 5 - 3a gives:
5a + 5.
5a+8.
11a +8.
8a+ 5.
The H.C.F of 2³ × 3 and 2 × 3² × 5 is:
2 × 3 × 5.
2³ × 3².
2⁴ × 3² × 5.
2 × 3.
