Question

20 x square - 15 x minus 10 equal to zero​

Answer 1

Step-by-step explanation:

Hope it helps ..

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Answer 2

Step-by-step explanation:

20x^2-15x-10=0

Here a=20,b=-15,c=-10

b^2-4ac=-15^2-4×20(-10)

=225+800

=1025

x=-b+rootb^2-4ac/2a or -b-rootb^2-4ac/2a

=15+root1025/40 or 15-root1025/40