Solve this: (3x+1)(3x-1)(3x+2)(3x-2)
Asked by zimmylalwani9363.9sdatl
| 17th Jun, 2020,
12:57: PM
Expert Answer:
(3x+1)(3x-1)(3x+2)(3x-2)
= (9x2 - 1)(9x2 - 4) ... [Using the identity (a2 - b2) = (a+b)(a-b)]
= (9x2)2 - 4 x 9x2 - 9x2 + 4
= (9x2)2 - 36x2 - 9x2 + 4
= 81x4 - 45x2 + 4
= 81x4 - 45x2 + 4
Answered by Renu Varma
| 18th Jun, 2020,
11:48: AM
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