Help I don’t know these two helppp

Use the quadratic formula to solve 5x=6x^2-3,what are the values of x?

The probability that an adult possesses a credit card is .70. a researcher selects two adults at random. by assuming the independence, the probability that the first adult possesses a credit card and the second adult does not possess a credit card is:

Find measure angle 1 and measure angle 3 in the kite the diagram is not drawn on the scale