Question

Solve the following quadratic equation for x and
give your answer correct to two decimal places
5x (x + 2) = 3.
(ICSE 2008)​

Answer 1

Answer:

given 5x(x + 2)

5x^2+10x-3

apply the formula -b+or-√b^2-4ac÷2a

after that

We get

-5+or-√85÷10

-5+or-9.219÷10

for +

you will get -4.0781

and for - you will get -5.9219