Test: Algebraic expressions II - Ambitious

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Question 1:   Simplify the expression   2a+ 1 3 b5a+d
3ad
3a+ 1 3 b+d
3a+d
3a+ 1 3 b+d
Question 2:   Expand   (3a1)(3)
9a+3
6a
9a+3
9a3
Question 3:   Simplify the expression   3(b2)(a+0.4)
3ba6.4
3ba6.4
3b+a+6.4
3ba+6.4
Question 4:   Simplify   2 5 a 2 b 7 3
8 125 a 2 b 7
8 125 ab
2 5 a 6 b 21
8 125 a 6 b 21
Question 5:   Simplify the expression   a+2 2 a2 2
8a
8a
8 a 2
8 a 2
Question 6:   Reduce the fraction   ab a 2 + b 2 4ab+2ab
a ab
1 ba
1 ab
ab
Question 7:   Reduce the fraction   x+ x x +1
x
x+1
x
x +1
Question 8:   Get rid of irrationality in the denominator   2 a 2
2+ 2 2
2 2 a 2
2a 2
2+a 2
Question 9:   Using the formula   s= s 0 +vt  ,  rearrange it to find   t
t=vs s 0
t= v s s 0
t= s s 0 v
t= s s 0 v
Question 10:   One of the roots of equation   x 2 +3x+b   is   5  .  Find   b   and the second root of the equation.
b=40 x 2 =8

b=30 x 2 =10

b=40 x 2 =8

b=30 x 2 =10