Question

Solve by using identity: (a) (3x² - 5y³)²

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Answer 1

Answer:

(3x^2 - 5y^3)^2

= (3x^2)^2 - 2* 3x^2 * 5y^3 + (5y^3)^2

= 9x^4 - 30x^2 y^3 + 25y^6

Step-by-step explanation:

this is ur answer

Answer 2

Answer:

9x^4+30x^2y^3-25y^9

Step-by-step explanation:

(3x^2-5y^3)^2=(3x^2)^2*2*3x^2*5y^3-(5y^3)^2

{.[a+b]^2=a^2+2ab+b^2}

=9x^4+30x^2y^3-25y^9