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Factorise the following using the identity `a^2 – b^2 = (a + b) (a – b)`. `25ax^2 –
asked
Jan 18, 2022
in
8th-maths
marks3
chapter9
#sub
0
votes
0
answers
Factorise the following using the identity `a^2 – b^2 = (a + b) (a – b)`. `16x^4 –
asked
Jan 18, 2022
in
8th-maths
marks3
chapter9
#sub
0
votes
0
answers
The following expressions are the areas of rectangles. Find the possible lengths and breadths of these rectangles. `–121p^3q^3r^3 -:
asked
Jan 18, 2022
in
8th-maths
marks3
chapter9
#sub
0
votes
0
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Factorise the expressions and divide them as directed: `(9x^2 – 4) -: (3x +
asked
Jan 18, 2022
in
8th-maths
marks3
chapter9
#sub
0
votes
0
answers
If p + q = 12 and pq = 22, then find `p^2 +
asked
Jan 18, 2022
in
8th-maths
marks3
chapter9
#sub
0
votes
0
answers
Verify the following: `(5x + 8)^2 – 160x = (5x –
asked
Jan 18, 2022
in
8th-maths
marks3
chapter9
#sub
0
votes
0
answers
Verify the following: `(7p – 13q)^2 + 364pq = (7p +
asked
Jan 18, 2022
in
8th-maths
marks3
chapter9
#sub
0
votes
0
answers
Find the value of a, if `pq^2a = (4pq + 3q)^2 – (4pq –
asked
Jan 18, 2022
in
8th-maths
marks3
chapter9
#sub
0
votes
0
answers
If `x-1/x=7` then find the value of
asked
Jan 18, 2022
in
8th-maths
marks3
chapter9
#sub
0
votes
0
answers
The figure shows the dimensions of a wall having a window and a door of a room. Write an algebraic expression for the area of the wall to be painted.
asked
Jan 18, 2022
in
8th-maths
marks3
chapter9
#sub
0
votes
0
answers
The value of `1/4^-2`
asked
Jan 18, 2022
in
8th-maths
marks1
chapter8
#mcq
0
votes
0
answers
The standard form for 0.000064
asked
Jan 18, 2022
in
8th-maths
marks1
chapter8
#mcq
0
votes
0
answers
The standard form for 234000000
asked
Jan 18, 2022
in
8th-maths
marks1
chapter8
#mcq
0
votes
0
answers
For a non-zero rational number p, `p^13 -: p^8` is equal
asked
Jan 18, 2022
in
8th-maths
marks1
chapter8
#mcq
0
votes
0
answers
Cube of `-1/2`
asked
Jan 18, 2022
in
8th-maths
marks1
chapter8
#mcq
0
votes
0
answers
The standard form for 32,50,00,00,000 is
asked
Jan 18, 2022
in
8th-maths
marks1
chapter8
#fib
0
votes
0
answers
On dividing `8^5` by _________ we get
asked
Jan 18, 2022
in
8th-maths
marks1
chapter8
#fib
0
votes
0
answers
The value of `[3^(–1) xx 4^(–1)]^2` is
asked
Jan 18, 2022
in
8th-maths
marks1
chapter8
#fib
0
votes
0
answers
`24.58 = 2 xx 10 + 4 xx 1 + 5 xx 10 + 8 xx
asked
Jan 18, 2022
in
8th-maths
marks1
chapter8
#tnf
0
votes
0
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`a^m =
asked
Jan 18, 2022
in
8th-maths
marks1
chapter8
#tnf
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