Answer :
4x² + 7x + 2 = 0
x = -7 +/- √(7² - 4(4)(2))
2(4)
x = -7 +/- √(49 - 32)
8
x = -7 +/- √(17)
8
x = -7 +/- 4.123
8
x = -7 + 4.123 x = -7 - 4.123
8 8
x = -2.877 x = -11.123
8 8
x = -0.359625 x = -1.390375
x = -7 +/- √(7² - 4(4)(2))
2(4)
x = -7 +/- √(49 - 32)
8
x = -7 +/- √(17)
8
x = -7 +/- 4.123
8
x = -7 + 4.123 x = -7 - 4.123
8 8
x = -2.877 x = -11.123
8 8
x = -0.359625 x = -1.390375