Question

5t^2-10t+5
How did the value of t came 2.5 from above eq, plz explain
And if its not 2.5 then what should be the ans?
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Answer 1

Answer:

t=1

Step-by-step explanation:

5t^2-10t+5

=5t^2-5t-5t+5

=5t(t-1)-5(t-1)

=(5t-5)(t-1)

t=1

Answer 2

Answer:

have you ever heard the discriminant method for finding root.?

it is

x=(-b+_(b^2-4ac)^2)/2a

for equation

ax^2+bx+c

put the values and get the answer.

lets try conventional method.

5t^2-10t+5

=5tt-5t-5t+5

=5t(t-1)-5(t-1)

=(5t-5)(t-1)

so t=1 and 1