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Solve: (2x+3)2 = 81 - Mathematics

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Sum

Solve: (2x+3)= 81

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Solution

(2x+3)= 81

`=> 2x - 3 = +-9`

=> 2x + 3 = 9  and 2x + 3 = -9

=> 2x + 3 = 9 and 2x = -12

=> x = 3 and x = -6

Concept: Quadratic Equations
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APPEARS IN

Selina Concise Maths Class 10 ICSE
Chapter 5 Quadratic Equations
Exercise 5 (E) | Q 2 | Page 66
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