Question # 1

What will be added in 9x²-12xy to complete the square:

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-16y²

16y²

-4y²

4y²

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

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)

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

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

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8

-8

4

16

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

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-16b²

16b²

-4b²

4b²

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)

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If x=-3 and y=-1 then the value of x³y will be:

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27

-27

9

-9

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

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Functions

Member

Elements

Factors

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)

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

Factors of 3x²-x-2 are:

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(x+1),(3x-2)

(x+1),(3x+2)

(x-1),(3x-2)

(x-1),(3x+2)

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

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

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