Question

products of zero is 2x^2 - 7x "-9" is​

Answer 1

Answer:

Once you can accomplish arranging to get ax2+bx +c = 0...

you can use the Quadratic Equation: [-b +/- sqrt(b2 - 4ac)] / (2a) to solve for x

= [-7 +/- sqrt[49 - 4(2)(-9)] / (2(2)

= [-7 +/- sqrt[49-(-72)] / 4

= [-7 +/- sqrt(121)]/ 4

= -7/4 +/- 11/4

x = 1 and x = -9/2