{(4.65)^{3}+13.95(3.85)^{2}-11.55(4.65)^{2}-(3.85)^{3}}/{(4.65)^{2}-2 \times 4.65 \times 3.85+(3.85)^{2}}सरल करें।

RRB NTPC प्रारंभिक हल सहित प्रैक्टिस टेस्ट 3

Question : 45 of 100

Marks: +1, -0

{(4.65)^{3}+13.95(3.85)^{2}-11.55(4.65)^{2}-(3.85)^{3}}/{(4.65)^{2}-2 × 4.65 × 3.85+(3.85)^{2}}

सरल करें।

Solution:

{a^{3}+3 a b^{2}-3 a^{2} b-b^{3}}/{a^{2}-2 a b+b^{2}}

={(a-b)^{3}}/{(a-b)^{2}}=(a-b)

⇒(a-b)=(4.65-3.85)

=0.8

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