Page 9 - Algebra 1

Exercise
1. Bianca has some white balls; her friend Greg has 20 more. Another friend Ron has 5 balls more than both Bianca and Greg. Find the expression using which you can find the number of balls possessed by Ron.
a) x + 20 c) 2x + 25 e) x – 20
2. What is the value of 3.92?
a) 9.51 c) 10.31 e) 15.21
3. Simplify(x2+4)(x2 –4)+16
a) x4
c) x2– 16
b) x
d) 2x – 25
b) 8.41 d) 12.91
b) – x4
d) x4– 32
e) x4– 16
4. Find the value of the expression 2x(6x – 1), when x = 2.
a) 1 b) 2 2
c) 1 d) 4 6
e) 6
5. Add the two algebraic expression: 2c (3c2 – 5c + 2) and 4(c3 + 3c2 – 5c)
a)10c3+2c2+16c b)2c3–22c2–24c c)10c3–2c2–16c d)10c3+2c2–16c e) 2c3 + 22c2 – 24c
6. A farmer plants roses and sunflower is a square plot. The length of the rose plot is five meters bigger than the length of the sunflower plot. How much bigger is the area of the rose plot when compared to the area of the sunflower plot?
a) 10x + 25 b) 2x + 5 c) 10x– 25 d) x + 10 e) 2x – 5
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ALGEBRA