Solve the following equation: (5x - 4)(9x + 7) = 0
{4/5, -7/9}
{-4/5, 7/9}
{5/4, -9/7}
{-5/4, 9/7}

Question

Solve the following equation: (5x - 4)(9x + 7) = 0 
    {4/5, -7/9} 
   {-4/5, 7/9} 
   {5/4, -9/7} 
   {-5/4, 9/7}

anonymous · Answer

Put them separately equal to 0.

$$(5x - 4) = 0$$

And:
$$(9x+7) = 0$$

Solve for x in both cases..

anonymous · Answer

What do you get when you solve this:

5x - 4 = 0

Add 4 both sides and then divide by 5 both the sides and find x..

Can you do this??

anonymous · Answer

so its the last one? (last option")

anonymous · Answer

Don't guess it..

Solve it you will automatically have your answer..

Tell me what do you get when you add 4 both the sides to this equation:

5x - 4 = 0

Add 4 both sides and tell me what do you get??

anonymous · Answer

i didnt guess i solved and got the last one