what will be the nature of the roots of quadratic equation 2 X square + 4 x minus 7 is equals to zero
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Answered by
1
2x² + 4x - 7 = 0
D = b² - 4ac
= (4)² - 4(2)(-7)
= 16 + 14 × 4
= 16 + 56
= 72
Two real and distinct roots.
Answered by
3
sorry 14-(-56)
14+56=72
so roots are real and distinct
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