# Samacheer Kalvi Math Solution for Exercise 3.15

This page Samacheer Kalvi Math Solution for Exercise 3.13 is going to provide you solution for every problems that you find in the exercise no 3.15

## Samacheer Kalvi Math Solution for Exercise 3.15

(1) Solve the following quadratic equations by completing the square.

(i) x² + 6 x - 7 = 0   Solution

(ii) x² + 3 x + 1 = 0    Solution

(iii) 2 x² + 5 x - 3 = 0     Solution

(iv) 4 x² + 4 b x - (a² - b²) = 0   Solution

(v)  x² - (3 + 1) x + 3 = 0      Solution

(vi) (5 x + 7)/(x - 1) = 3 x + 2  Solution

(i) x²- 7x + 12 = 0     Solution

(ii) 15x²- 11 x + 2 = 0      Solution

(iii) x + (1/x) = 2 ½     Solution

(iv) 3 a²x² - ab x - 2b² = 0  Solution

(v) a (x² + 1) =  x(a² + 1)         Solution

(vi) 36 x² - 12 a x + (a² - b²) =  0      Solution

(vii) [(x - 1)/(x + 1)] + [(x - 3)/(x - 4)] = 10/3   Solution

(viii) a² x² + (a²- b²)x - b²= 0    Solution

Featured Categories

Math Word Problems

SAT Math Worksheet

P-SAT Preparation

Math Calculators

Quantitative Aptitude

Transformations

Algebraic Identities

Trig. Identities

SOHCAHTOA

Multiplication Tricks

PEMDAS Rule

Types of Angles

Aptitude Test