Question

9x^2-14x-8=o using quadratic formula​

Answer 1

Answer:

see pic attached

Step-by-step explanation:

please mark brainliest answer....

Answer 2

Equation = 9x² - 14x - 8

On comparing,

a = 9 ; b = -14 ; c = -8

Now,

$</p><p></p><p>\qquad \boxed{x = \frac{ -b \pm \sqrt{b^{2} - 4ac } }{ 2a } }</p><p></p><p>\\ \\ </p><p></p><p>\Rightarrow \quad \frac{ -(-14) \pm \sqrt{ (-14)^{2} - 4 \times 9 \times -8} }{ 2 \times 9 }</p><p></p><p>\\ \\</p><p></p><p>\Rightarrow \quad \frac{ 14 \pm \sqrt{ 196 + 288 } }{ 18 } </p><p></p><p>\\ \\</p><p></p><p>\Rightarrow \quad \frac{ 14 \pm \sqrt{484} }{ 18 } </p><p></p><p>\\ \\</p><p></p><p>\Rightarrow \quad \frac{ 14 \pm 22 }{ 18 }</p><p></p><p></p><p>$

Now,

☛ x1 = 14 + 22 / 18

☛ 36/18

☛ 2

➜ x1 = 2

☛ x2 = 14 - 22 / 18

☛ -8/18

☛ -4/9

➜ x2 = -4/9

Zeroes are :

2 and -4/9