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Find the value of a/b + b/a, if a and b are the roots of the quadratic equation x^{2} + 8x + 4 = 0?
Find the quadratic equations whose roots are the reciprocals of the roots of 2x^{2} + 5x + 3 = 0?
A man could buy a certain number of notebooks for Rs.300. If each notebook cost is Rs.5 more, he could have bought 10 notebooks less for the same amount. Find the price of each notebook?
I. a^{2}  7a + 12 = 0,
II. b^{2}  3b + 2 = 0 to solve both the equations to find the values of a and b?
I. a^{2}  9a + 20 = 0,
II. 2b^{2}  5b  12 = 0 to solve both the equations to find the values of a and b?
I. a^{2} + 11a + 30 = 0,
II. b^{2} + 6b + 5 = 0 to solve both the equations to find the values of a and b?
I. a^{2} + 8a + 16 = 0,
II. b^{2}  4b + 3 = 0 to solve both the equations to find the values of a and b?
I. a^{2}  2a  8 = 0,
II. b^{2} = 9 to solve both the equations to find the values of a and b?
I. x^{2} + 5x + 6 = 0,
II. y^{2} + 9y +14 = 0 to solve both the equations to find the values of x and y?
214 videos139 docs151 tests

214 videos139 docs151 tests
