Subtract 32 to both sides to the equation becomes -5x^2 + 7x + 9 = 0.
To solve this equation, we can use the quadratic formula. The quadratic formula solves equations of the form ax^2 + bx + c = 0 
                   x = [ -b ± √(b^2 - 4ac) ] / (2a) 
                   x = [ -7 ± √(7^2 - 4(-5)(9)) ] / ( 2(-5) ) 
                   x = [ -7 ± √(49 - (-180) ) ] / ( -10 ) 
                   x = [ -7 ± √(229) ] / ( -10) 
                   x = [ -7 ± sqrt(229) ] / ( -10 ) 
                   x = 7/10 ± -sqrt(229)/10 
The answers are 7/10 + sqrt(229)/10 and 7/10 - sqrt(229)/10.
        
             
        
        
        
Right angle is the right answer
        
                    
             
        
        
        
Answer:
Step-by-step explanation:
Sure! So, we need to divide by 1.6 on each side to isolate the x. 
1.6x / 1.6 is just x. We need to divide by the same on the other side too! 
1.28 / 1.6 is 0.8. 
So x = 0.8