Question

Evaluate:
[4a² - 2a +1] [2a +5]​

Answer 1

HEY MATE HERE IS YOUR ANSWER

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2a - 1/2a=3

Squaring both sides

We get,

(2a-1/2a) ^2 = 3^2

➡️ 4a^2 +1/4a^2 - 2 = 9

➡️ 4a^2 + 1/4 a^2 = 11

Again Squaring both sides

(4a^2 + 1/4a^ = 11^2

➡️ 16a^4 + 1/16^4 = 121

➡️ 16a^2 + 1/16a^2 + 2 = 121

➡️ 16a^4 + 1/16a^4 = 121 - 2 = 119

Answer :- 119

Hope it will help you

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Answer 2

[4a² - 2a +1] [2a +5]

8a³- 4a² + 2a + 20a - 10a + 5

8a³ - 14a² - 8a + 5

Hope it helps u✌️