arrow
arrow
arrow
Select the term that can replace the question mark (?) in the following equation. ​(2a3−3)(5a3−2)=10a6+?+6(2a^3-3)(5a^3-2)=10 a^6 + ?+ 6(2a3−3)(5a3−2
Question

Select the term that can replace the question mark (?) in the following equation.
(2a33)(5a32)=10a6+?+6(2a^3-3)(5a^3-2)=10 a^6 + ?+ 6​​

A.

19a^2

B.

-19a3a^3​​

C.

19a319a^3​​

D.

19

Correct option is B

Given:

(2a³ - 3)(5a³ - 2)
Solution:

(2a³ - 3)(5a³ - 2)
= 2a³(5a³ - 2) - 3(5a³ - 2)
= 10a⁶ - 4a³ - 15a³ + 6
= 10a⁶ - 19a³ + 6
Thus, -19a³ is the required value.

Free Tests

Free
Must Attempt

CBT-1 Full Mock Test 1

languageIcon English
  • pdpQsnIcon100 Questions
  • pdpsheetsIcon100 Marks
  • timerIcon90 Mins
languageIcon English
Free
Must Attempt

RRB NTPC Graduate Level PYP (Held on 5 Jun 2025 S1)

languageIcon English
  • pdpQsnIcon100 Questions
  • pdpsheetsIcon100 Marks
  • timerIcon90 Mins
languageIcon English
Free
Must Attempt

CBT-1 General Awareness Section Test 1

languageIcon English
  • pdpQsnIcon40 Questions
  • pdpsheetsIcon30 Marks
  • timerIcon25 Mins
languageIcon English
test-prime-package

Access ‘RRB NTPC’ Mock Tests with

  • 60000+ Mocks and Previous Year Papers
  • Unlimited Re-Attempts
  • Personalised Report Card
  • 500% Refund on Final Selection
  • Largest Community
students-icon
354k+ students have already unlocked exclusive benefits with Test Prime!
Our Plans
Monthsup-arrow