ICSE ICSE Class 8 - CISCE Question Bank Solutions

Write the Additive Inverse(Negative) of : `(-3)/1`

Fill in the blank:

Additive inverse of `(-5)/(-12)`=  --------

Fill in the Blank:

`(-5)/(-12)`+ its additive inverse = ______

Fill in the Blank

If `a/b` is additive inverse of `(-c)/d`, then `(-c)/d` is additive inverse of ------. 

Which rational numbers should be added to `(-7)/8` to get `5/9`?

Evaluate:

`(2/(-3) xx 5/4) + (5/9 xx 3/(-10))`

Evaluate:

`(8/5 xx (-3)/2) + ((-3)/10 xx 9/16)`

Find x, if 9 x 3^x = (27) ^2x-3.

If 1125 = 3^m x 5ⁿ, find m and n

Simplify:

`("x"^("a"+"b"))^("a"-"b").("x"^("b"+"c"))^("b"-"c").("x"^("c"+"a"))^("c"-"a")`

Simplify:

`root5("x"^20"y"^-10"z"^5)÷"x"^3/"y"^3`

Simplify:

`[(256"a"^16)/(81"b"^4)]^(-3/4)`

Simplify and express as positive indice:

`("x"^"n""y"^-"m")^4xx("x"^3"y"^-2)^-"n"`

Simplify and express as positive indice;

`[(125"a"^-3)/"y"^6]^(-1/3)`

Simplify and express as positive indice:

`[(32"x"^-5)/(243"y"^-5)]^(-1/5)`

Factorise : 15x + 5 

Factorise : a³ - a² +a 

Factorise : 3x² + 6x³ 

Factorise : 4a² - 8ab  

Factorise : 2x³b² - 4x⁵b⁴