MCQ of Maths Class 9
Factors of 27×3-1/x3 are:
(3x-1/x), (9×2+x+1/x2)
(3x-1/x), (9×3+3+1/x2)
(3x-1/x), (9×2-3+1/x2)
(3x-1/x), (9×2-3+1/x2)
What will be added to complete the square of9a – 12ab.
-16b2
16b2
4b2
-4b2
Factors of 5×2-17xy-12y2 are ………
(x + 4y),(5x+3y)
(x-4y),(5x-3y)
(x-4y)(5x-3y)
(5x-4y),(x+3y)
An expression involving one or more ……………. number is called a surd.
Rational
Irrational
Both a & b
None of these
A polynomial P(x) = 2×2 – x = 3 is said to be ………………… .
Trinomial
Mononomial
Binomial
None of these
What will be added to complete the square of 9a2-12ab………..?
-16b2
16b2
4b2
-4b2
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