Question

find D for (3x-15)²=5​

Answer 1

Answer:

Yes...we can find..D(Discriminant)

Well,

We have to expand L.H.S with the help of (a-b)².

We'll get 9x²+225-90x

Now we can write like this:

=>9x²+225-90x=5

=>9x²-90x+220=0(By solving equations)

Let a =9 , b =-90 and c =220

Now,

•D=b²-4ac

=>D=(-90)²-4×9×220

=> 8100-7920

=> 180

=>D=180

Here's your answer buddy...

Of it helps plzz make it as brainliest and thank it too...^_^