Question

maximum value of 5+ 4x-x is​

Answer 1

Answer:

6

Step-by-step explanation:

f(x)=5+4x−4x  

2

 

a=−4;b=4;c=5

y  

max

​  

=(b  

2

−4ax)/−4a

=4  

2

−4(−4)(5)/−4(−4)

=(16+80)/16

=  

16

96

​=6

Answer 2

Answer:

= 4ac − b24a

= 4(−1)(5) − 424(−1)

= − 20 − 16−4 = 364 = 9