Factorize the following expression : x(x^3 – y^3) + 3xy(x – y)

Factorize x(x³ – y³) + 3xy(x – y) Question: Factorize: \[ x(x^3-y^3)+3xy(x-y) \] Solution: \[ x(x^3-y^3)+3xy(x-y) \] \[ =x(x-y)(x^2+xy+y^2)+3xy(x-y) \] \[ =(x-y)\left[x(x^2+xy+y^2)+3xy\right] \] \[ =(x-y)(x^3+x^2y+xy^2+3xy) \] \[ =(x-y)\left(x^3+x^2y+xy^2+y^3-y^3+3xy\right) \] \[ =(x-y)\left[(x+y)(x^2+y^2)+xy(x+y)-y^3+3xy\right] \] \[ =(x-y)(x+y)(x^2+y^2+xy) \] \[ \boxed{(x-y)(x+y)(x^2+xy+y^2)} \] Next Question / Full Exercise

Factorize the following expression : x(x^3 – y^3) + 3xy(x – y) Read More »

Statement-1 (Assertion): The square root of 1/abc (a^2+b^2+c^2) +2(1/a+1/b+1/c) is √a/bc + √b/ca + √c/ab Statement-2 (Reason): a^3+b^3+c^3 – 3abc = (a+b+c)(a^2+b^2+c^2-ab-bc-ca)

Assertion and Reason Questions on Algebraic Identities Question: Each of the following questions contains STATEMENT-1 (Assertion) and STATEMENT-2 (Reason) and has following four choices (a), (b), (c) and (d), only one of which is the correct answer. (a) Statement-1 is true, Statement-2 is true; Statement-2 is a correct explanation for Statement-1. (b) Statement-1 is true,

Statement-1 (Assertion): The square root of 1/abc (a^2+b^2+c^2) +2(1/a+1/b+1/c) is √a/bc + √b/ca + √c/ab Statement-2 (Reason): a^3+b^3+c^3 – 3abc = (a+b+c)(a^2+b^2+c^2-ab-bc-ca) Read More »

Statement-1 (Assertion): {(x^2-y^2)^3 + (y^2-z^2)^3 + (z^2-x^2)^3}/{(x-y)^3 + (y-z)^3 + (z-x)^3} = (x+y)(y+z)(z+x) Statement-2 (Reason): If a+b+c=0, then a^3+b^3+c^3 = 3abc

Assertion and Reason Questions on Algebraic Identities Question: Each of the following questions contains STATEMENT-1 (Assertion) and STATEMENT-2 (Reason) and has following four choices (a), (b), (c) and (d), only one of which is the correct answer. (a) Statement-1 is true, Statement-2 is true; Statement-2 is a correct explanation for Statement-1. (b) Statement-1 is true,

Statement-1 (Assertion): {(x^2-y^2)^3 + (y^2-z^2)^3 + (z^2-x^2)^3}/{(x-y)^3 + (y-z)^3 + (z-x)^3} = (x+y)(y+z)(z+x) Statement-2 (Reason): If a+b+c=0, then a^3+b^3+c^3 = 3abc Read More »

Statement-1 (Assertion): If a+b+c=6, ab+bc+ca = 11, then a^2+b^2+c^2 = 14 Statement-2 (Reason): (a+b+c)^2 = a^2 + b^2 + c^2 + 2(ab + bc + ca)

Assertion and Reason Questions on Algebraic Identities Question: Each of the following questions contains STATEMENT-1 (Assertion) and STATEMENT-2 (Reason) and has following four choices (a), (b), (c) and (d), only one of which is the correct answer. (a) Statement-1 is true, Statement-2 is true; Statement-2 is a correct explanation for Statement-1. (b) Statement-1 is true,

Statement-1 (Assertion): If a+b+c=6, ab+bc+ca = 11, then a^2+b^2+c^2 = 14 Statement-2 (Reason): (a+b+c)^2 = a^2 + b^2 + c^2 + 2(ab + bc + ca) Read More »