| 1 |
x + 5/x2 - 6x - x/x - 6 =? |
- A. 5 - x - x2/x2 -6x
- B. 5 + x - x2/x2 -6x
- C. 5 + x - x2/x2 +6x
- D. x2 - 6x/5 + x- x2
|
| 2 |
if x2 = a, then: |
- A. x = a
- B. x = ±a
- C. x = √a
- D. x = ±√a
|
| 3 |
Type of algebraic expressions are: |
- A. Polynomial , Rationa expression
- B. Rational expression, irrational expression
- C. irratioanal expressional , Polynomial
- D. Polynomial , Rational expression , Irational expression
|
| 4 |
Which of the following expression is not a rational expression? |
- A. 3√x +1/3√x +1
- B. x3 +1/x + 1
- C. x + 1 /3x3 + x2 +3
- D. 2x2/3y3
|
| 5 |
Conjugate binomial surd of a + b √x is |
- A. a +bx
- B. a - b√x
- C. √a + √bx
- D. a - bx
|
| 6 |
An irrational number that contains a radical sign is called: |
- A. Polynomial
- B. surd
- C. equality
- D. inequality
|
| 7 |
Which of the following is a pure surd? |
- A. 4√3
- B. 5√7
- C. 1/7√3
- D. 4
|
| 8 |
if a + b =8 and a-b =3, then ab = ? |
|
| 9 |
2(a2 + b2) = ? |
- A. (a2 + b2) -4ab
- B. (a + b)2 + (a - b)2
- C. (a + b ÷ c)2
- D. (a + b)2 - (a - b)2
|
| 10 |
An expression which can be written in the form of P(x)/Q(x , Q (x)≠0, Where P(x) and Q(x) are polynomials in ''x'' is called a: |
- A. irraational expression
- B. rational expression
- C. proper rational expression;
- D. improper rational expression
|
