Solve. x^2 + 3x - 7=0. Enter your answers, as exact values, in the boxes. X = or x=.

Question

Mathematics

Tanya Branch

2 June, 23:27

Solve. x^2 + 3x - 7=0. Enter your answers, as exact values, in the boxes. X = or x=.

+4

Answers (1)

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Fabian · Answer 1

Use the quadratic formula

x = [-b + - sqr root (b^2 - 4*a*c) ] / 2a

x = [-3 + - sqr root (9 - 4*1*-7) ] / 2

x = (-3 + - sqr root (37) / 2

x1 = 1.5414

x2 = - 4.5414