Start learning →

$a^3 - b^3$-ৰ উৎপাদক বিশ্লেষণ কৰক।

A$(a-b)(a^2 - ab + b^2)$
B$(a-b)(a^2 + 2ab + b^2)$
C$(a-b)(a^2 + ab + b^2)$
D$(a-b)^3$
Answer & Solution
Correct answer: C. $(a-b)(a^2 + ab + b^2)$
ঘনৰ বিয়োগফলৰ অভেদটো হ'ল $a^3-b^3=(a-b)(a^2+ab+b^2)$। গতিকে বিকল্প C শুদ্ধ। বিকল্প A-ত $ab$-ৰ আগৰ চিন ভুল আছে, আৰু বিকল্প B-ত $ab$-ৰ সহগ অশুদ্ধভাৱে $2$ দিয়া হৈছে।
Practise this question with Quill — RRB NTPC →

Keep practising Elementary Algebra

Browse all Elementary Algebra questions for RRB NTPC, or explore more Quantitative Reasoning topics.

Start a Elementary Algebra lesson →
Related questions
If $a + b + c = 6$ and $a^2 + b^2 + c^2 = 14$, find $ab + bc + ca$.If $x + \dfrac{1}{x} = 5$, find $x^3 + \dfrac{1}{x^3}$.If $a + b + c = 0$, what is the value of $a^3 + b^3 + c^3$?Expand $(x + 5)^2$.If $a + b = 7$ and $a - b = 3$, what is $a^2 - b^2$?