Question

If $8x^2-22x-21=0$, then $x=-\frac{3}{4},\frac{5}{2}$.

• A. Yes
• B. No
• C. Ambiguous
• D. Data insufficient

Answer 1

The correct option is B No

Given equation is:

$8x^2-22x-21=0$
$8x^2-28x+6x-21=0$
$(2x-7)(4x+3)=0$
$\therefore x=\frac{7}{2},\frac{-3}{4}$