Question # 1

Which of the following is a proper rational expression?

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2x3 + 3x2 +3/x2 + x + 3

3x2 + 4x + 5/ 2x^4+ 1

x3 +8/x + 1

2√x+3/2√x-3

2(a2 + b2) = ?

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(a2 + b2) -4ab

(a + b)2 + (a - b)2

(a + b ÷ c)2

(a + b)2 - (a - b)2

An irrational number that contains a radical sign is called:

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Polynomial

surd

equality

inequality

if P(x) = 4x3 +3x2 + 5x + 1, then P(1) as:

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13

15

17

19

The lowest term of 8x2y2/12xy5 is:

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2x2/3y3

3x3/2y2

3x2/2y3

4c2/9y3

Which of the following expression is not a rational expression?

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3√x +1/3√x +1

x3 +1/x + 1

x + 1 /3x3 + x2 +3

2x2/3y3

An expression which involves numbers and letters together with operational signs is called:

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Polynomial

Algebraic expression

rational expression

Irrational expression

Conjugate binomial surd of a + b √x is

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a +bx

a - b√x

√a + √bx

a - bx

x + 5/x2 - 6x - x/x - 6 =?

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5 - x - x2/x2 -6x

5 + x - x2/x2 -6x

5 + x - x2/x2 +6x

x2 - 6x/5 + x- x2

if x2 = a, then:

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x = a

x = ±a

x = √a

x = ±√a

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:

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irraational expression

rational expression

proper rational expression;

improper rational expression

Type of algebraic expressions are:

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Polynomial , Rationa expression

Rational expression, irrational expression

irratioanal expressional , Polynomial

Polynomial , Rational expression , Irational expression

if a + b =8 and a-b =3, then ab = ?

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-40

24

18

8

The symbol '' i.e '' stands for:

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therefore

because

that is

correspondence

Which of the following is a pure surd?

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4√3

5√7

1/7√3

4

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