Question

Solve -2x2 +3x - 9 = 0.

x equals quantity of 3 plus or minus 3i square root of 7 all over 4

x equals quantity of 3 plus or minus 9i square root of 7 all over 4

x equals quantity of negative 3 plus or minus 3i square root of 7 all over 4

x equals quantity of negative 3 plus or minus 9i square root of 7 all over 4

Answer 1

to solve this you can use the quadratic formula
for the equation
ax^2 + bx + c = 0

x = [-b +/- sqrt(b^2 - 4ac)] / 2a

so plug in a = -2 , b = 3 and c = -9 into this formula and work it out