Math, asked by Tushargupta9142, 11 months ago

பி‌ன்வருவனவ‌ற்றை கார‌ணிபடு‌த்துக
i)8x^3+125y^3 ii)27x^3-8y^3

Answers

Answered by ms9733756
0

Answer:

please write in English bro OK

Answered by steffiaspinno
0

விளக்கம்:

(ii)8 x^{5}+125 y^{3}

=(2 x)^{3}+(5 y)^{3}

a^3+b^3=(a+b)(a^2-ab+b^2)

           =(2 x+5 y)\left[(2 x)^{2}-(2 x)(5 y)+(5 y)^{2}\right]

           =(2 x+5 y)\left[4 x^{2}-10 x y+25 y^{2}\right]

(ii)27 x^{3}-8 y^{3}

(3 x)^{3}-(2 y)^{3}

a^3+b^3=(a+b)(a^2-ab+b^2)

= (3 x-2 y)\left[(3 x)^{2}+\left[(3 x)(2 y)+(2 y)^{2}\right]\right.

=(3 x-2 y)\left[(9 x)^{2}+6 x y+(2 y)^{2}\right]

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