Question

please answer these questions they are of class 10 ch 4
they are to be solved by quadratic formula ​

Answer 1

Answer:

• x=2/9 ,x=-1

Step-by-step explanation:

• 9x2+7x-2=0
• 9x2+9x-2x-2=0
• 9x(x+1)-2(x+1)=0
• (9x-2)(x+1)=0
• 9x-2=0
• 9x=2
• x=2/9....ans

• x+1=0
• x=-1......ans
• Ans x=2/9,x=-1
• Hope this will help you