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Solve the quadratic equation by completing the square, rounding to the nearest

Question : Solve the quadratic equation by completing the square, rounding to the nearest : 2139493

Provide an appropriate response.

143) Solve the quadratic equation by completing the square, rounding to the nearest hundredth: 5x2 - 2x = 4

A) x = 1.12, -0.72

B) x = .2 + 0.74i, .2 - 0.74i

C) x = 5.45, -5.05

D) x = 3.02, 0.98

144) Solve for x by completing the square: x2 + 80x = 150

A) 0.229

B) 0.917

C) 1.83

D) 0.458

Solve the equation using the quadratic formula.

145) 8x2 + 5x - 3 = 0

A) , 0

B) , -1

C) , 1

D) , -1

146) 14x2 + 15x = 0

A) 0

B) , 0

C) ±

D) -

147) x2 + x + 6 = 0

A) ±6

B) No real solution

C) 1, 6

D) 0, 6

148) 5x2 + 12x + 2 = 0

A)

B)

C)

D)

149) 4x2 = -8x - 2

A)

B)

C)

D)

150) 2x2 + 10x = - 3

A)

B)

C)

D)

151) x2 + 8x - 20 = 0

A) -10, 1

B) 10, -2

C) -10, 2

D) 10, 2

152) 5x2 - 40x + 75 = 0

A) -3, 5

B) 3, -5

C) -3, -5

D) 3, 5

Solution
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Mathematics 3 Years Ago 270 Views
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