`3a^7-b-81a^4b^4`

Factorize the following expressions 3a^7b-81a^4 b^4

Factorize: (a^4-8a^2b^2+16 b^4)-256 (ii) a^4-6a^2b^2+9b^4-81

In the algebraic expression 2a^2b+3a b^2-7a b-4b a^2, we have 2\ a^2b and -4b a^2 as like terms, whereas 3a b^2a n d\ 7a b are unlike terms.

The value of int_a^b(x-a)^3(b-x)^4dxi s ((b-a)^4)/(6^4) (b) ((b-a)^8)/(280) ((b-a)^7)/(7^3) (d) none of these

If tantheta=sqrt(a/b) where a , b are positive reals then the value of sinthetasec^7theta+costheta cosec^7theta is- a. ((a+b)^3(a^4+b^4))/((a b)^(7//2)) b. ((a+b)^3(a^4-b^4))/((a b)^(7//2)) c. ((a+b)^3(b^4-a^4))/((a b)^(7//2)) d. ((a+b)^3(a^4+b^4))/((a b)^(7//2))

Factorize: (a^(4)-8a^(2)b^(2)+16b^(4))-256a^(4)-6a^(2)b^(2)+9b^(4)-81

Identify the like terms abc, 3a^2 , 4b^2 , -7/4 ab ,-a^2, -b^2, -4a^2 , 7abc.

If (15a^2+4b^2)/(15a^2-4b^2) = 47/7 then find the value of the ratio : (7a-3b)/(7a+3b)

The value of int_a^b (x-a)^3(b-x)^4dx is (a) ((b-a)^4)/(6^4) (b) ((b-a)^8)/(280) (c) ((b-a)^7)/(7^3) (d) none of these

Factorize: x^(4)-y^(4) (ii) 16x^(4)-81x^(4)-(y+z)^(4)( iv )2x-32x^(5)3a^(4)-48b^(4)(vi)81x^(4)-121x^(2)