Question # 1

Factors of a⁴-4b⁴ are:

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(a-b),(a+b),(a2+4b²)

(a²-2b²),(a²+2b²)

(a-b),(a+b),(a^2-4b²)

(a-2b),(a²+2b²)

Factors of 8x3+27y3 are:

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(2x+3y),(4x2+9y2)

(2x-3y),(4x2-9y2)

(2x+3y),(4x2-6 xy+9y2)

(2x-3y),(4x2+6 xy+9y2)

In ab + ac = a(b+c) then a and b + c are__________ of ab + ac:

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Functions

Member

Elements

Factors

If (x-2) is a factor of polynomial expression x²+2kx+8 the value of k is:

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3

-3

2

-2

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Find m so that 9a²-12ab + m is a complete square :

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-16b²

16b²

-4b²

4b²

When a polynomial has been written as a product consisting only of ___________factors, then it is said to be factored completely ?

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Prime

Natural

Rational

Irrational

Factorize x²-11x-42:

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(x+14)(x+3)

(x-14)(x-3)

(x+14)(x-3)

(x-14)(x+3)

Degree of polynomial 4x⁴+2x²y is:

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1

2

3

4

Find m So that x²+4x+m is a complete square _______:

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8

-8

4

16

The factors of x²-5x+6 are:

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x+1, x-6

x-2, x-3

x+6, x-1

x+2, x+3

Factorize 3x²-75y²

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(x+3)(x+75y)

3(x+25y)(x-25y)

3(x-25y)(x-25y)

3(x+5y)(x-5y)

Factors of 3x-3a + xy - ay are:

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(y+3)(x-a)

(y+3)(x+a)

(3+y)(x-a)

(3-y)(a-x)

If a polynomial P(x) can be expressed as P(x) = g(x) . h(x), then each of the polynomials g(x) and h(x) is called _____________of P(x):

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Element

Factor

Member

Function

What will be added in b⁴+64 to complete the square:

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-16b²

16b²

-4b²

4b²

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Mathematics 9th Class English Medium Unit 5 Online Test MCQs With Answers

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