Find the discriminant for each equation and, hence, decide if the equation has two distinct roots, two
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Find the discriminant for each equation and, hence, decide if the equation has two distinct roots, two equal roots or no real roots.
a. x^{2} − 12x + 36 = 0
b. x^{2} + 5x − 36 = 0
c. x^{2} + 9x + 2 = 0
d. 4x^{2} − 4x +1 = 0
e. 2x^{2} −7x + 8 = 0
f. 3x^{2} + 10x − 2 = 0
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The discriminant of a quadratic equation ax2 bx c 0 is given by D b2 4ac The value of the d...View the full answer
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Related Book For
Cambridge International AS And A Level Mathematics Pure Mathematics 1 Coursebook
ISBN: 9781108407144
1st Edition
Authors: Sue Pemberton, Julian Gilbey
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