What are the solutions to the equation 8x^2+14x=15 ?

The solutions to the equation 8x^2+14x=15 are x= 3/4 ,x=-5/2

Find the zeros of 8x^2+14x=15

The zeros of 8x^2+14x=15 are x= 3/4 ,x=-5/2

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

8 x^{2} + 14 x = 15

x = \frac{3}{4}, x = - \frac{5}{2}

Decimal Notation

x = 0.75, x = - 2.5

Solution steps

8 x^{2} + 14 x = 15

Move

15

to the left side

8 x^{2} + 14 x - 15 = 0

Solve with the quadratic formula

x_{1, 2} = \frac{- 14 \pm 1 4 ^{2} - 4 \cdot 8 ( - 15 )}{2 \cdot 8}

1 4^{2} - 4 \cdot 8 (- 15) = 26

x_{1, 2} = \frac{- 14 \pm 26}{2 \cdot 8}

Separate the solutions

x_{1} = \frac{- 14 + 26}{2 \cdot 8}, x_{2} = \frac{- 14 - 26}{2 \cdot 8}

x = \frac{- 14 + 26}{2 \cdot 8} : \frac{3}{4}

x = \frac{- 14 - 26}{2 \cdot 8} : - \frac{5}{2}

The solutions to the quadratic equation are:

x = \frac{3}{4}, x = - \frac{5}{2}

(a^{\frac{1}{2}})^{3}

v^{2} = 81

\frac{x + 1}{2} > 4

45 x^{2} - 210 x + 245

∣ 2 x + 4 ∣ \leq 12

What are the solutions to the equation 8x^2+14x=15 ?
The solutions to the equation 8x^2+14x=15 are x= 3/4 ,x=-5/2
Find the zeros of 8x^2+14x=15
The zeros of 8x^2+14x=15 are x= 3/4 ,x=-5/2