Question

5t^2-15t=50 then t is​

Answer 1

f(t)= 5t²-15t-50 = 0

t²-3t-10=0

t²-5t+2t-10=0

t(t-5) + 2(t-5) = 0

(t-5)(t+2)

Therefore,

t-5=0

t=5

t+2=0

t=-2

Therefore value of t=5,-2

Answer 2

HEYA....

Answer:

5t²-15t= 50

5t²-15t-50= 0

By using Middle term Factorisation.

5t²-(10-25)t-50= 0

5t²-10t+25t-50= 0

5t(t-2)+25(t-2)= 0

(t-2)(5t+25)= 0

Either,

t-2= 0

t=2

Or

5t+25=0

5t=-25

t= -25/5

t= -5[Rejected]

Therefore value of t is 2

Hope its help....✌