Math, asked by Bhaieab7225, 11 months ago

கார‌ணிபடு‌த்துக

i)27x^3+125y^3
ii)216m^3-343n^3

Answers

Answered by steffiaspinno
0

விளக்கம்:

\text { (i) } 27 x^{3}+125 y^{3}\\  ன் காரணி    

\left(a^{3}+b^{3}\right)=(a+b)\left(a^{2}-a b+b^{2}\right)

               =(3 x)^{3}+(5 y)^{3}

               = (3 x+5 y)\left((3 x)^{2}-(3 x)(5 y)+(5 y)^{2}\right)                      

27 x^{3}+125 y^{3 =(3 x+5 y)\left(9 x^{2}-15 x y+25 y^{2}\right)

\text { (ii) } 216 \mathrm{m}^{3}-343 \mathrm{n}^{3} ன் காரணி

\left(a^{3}-b^{3}\right)=(a-b)\left(a^{2}+a b+b^{2}\right)

              =(6 m)^{3}-(7 n)^{3}            

              =(6 m-7 n)\left((6 m)^{2}+(6 m)(7 n)+(7 n)^{2}\right)

216 \mathrm{m}^{3}-343 \mathrm{n}^{3} =(6 m-7 n)\left(36 m^{2}+42 m n+49 n^{2}\right)

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