Question

solve the equation 10 X square + 15 x minus 6 x minus 9 is equals to zero
a not equal to zero​

Answer 1

Answer:

$10 {x}^{2} + 15x - 6x - 9 = 0 \\ 5x(2x + 3) - 3(2x + 3) = 0 \\ (5x - 3)(2x + 3) = 0 \\ 5x - 3= 0 \: \: and \: \: 2x + 3 = 0 \\ x = 3 \div 5 \: \: \: \: \: and \: \: x = - 3 \div 2$