Tick ( ) the correct answer: (a+1)(a-1) (a^2+1 )=? - Vidyadip

MCQ

Tick $(\checkmark)$ the correct answer:
$(a+1)(a-1)\left(a^2+1\right)=?$

A
$\left(a^4-2 a^2-1\right)$
B
$\left(a^4-a^2-1\right)$
✓
$\left(a^4-1\right)$
D
$\left(a^4+1\right)$

✓

Answer

Correct option: C.

$\left(a^4-1\right)$

$(a+1)(a-1)\left(a^2+1\right)$
$=\left(a^2-1\right)\left(a^2+1\right)$
$=a^4-1$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "MCQ" from Operations on Algebraic Expressions→Operations on Algebraic Expressions — all question types→Maths STD 8 question papers→Maharashtra Board STD 8 question papers→Maharashtra Board question paper generator→

Similar questions

Mark againts the correct answer in the following: $A$ can do a piece of work in $14$ days and $B$ is $40\%$ more efficient than $A.$ In how many days can $B$ finish it?

Mark $(\checkmark)$ against the correct answer: If $486^*7$ is divisible by $9,$ then the least value of $^*$ is:

Tick $(\checkmark)$ the correct answer in the following:On selling an article for $Rs. 48,$ a shopkeeper loses $20\%.$ In order to gain $20\%,$ what would be the selling price?

Tick $(\checkmark)$ the correct answer the following: $\Big(\frac{31}{-4}+\frac{-5}{8}\Big)=\ ?$

$\Big(\frac{-1}{2}\Big)^5\times\Big(\frac{-1}{2}\Big)^3$ is equal to:

Tick $(\checkmark)$ the correct answer in the folllowing$: 3$ persons can build a wall in $4$ days, then $4$ persons can build it in.

Tick $(\checkmark)$ the correct answer: $\sqrt[3]{\frac{64}{343}}=\ ?$

$14$ workers can build a wall in $42$ days. One worker can build it in:

Tick $(\checkmark)$ the correct answer in the following: The compound interest on $Rs. 5000$ at $8\%$ per annum for $2$ years, compounded annually, is.

Tick $(\checkmark)$ the correct answer in the following: If the compound interest on a sum for $2$ years at $12\frac{1}{2}\%$ per annum is $Rs. 510,$ the simple interest on the same sum at the same rate for the same period of time is.