Let f(x) = x2 − 4 and g(x) = 4x − 3, how do you find (f − g)(−6)?

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Answer 1 · 2018-03-31T01:52:41

#59#

#(f-g)(x)=f(x)-g(x)#. so #(f-g)(x)=x^2-4x-1#. Plugging in -6, you get that the answer is #59#

Answer 2 · 2018-03-31T01:53:17

#(f-g)(-6)=59#

#(f-g)(-6)# = #f(-6)-g(-6)#

#f(-6)=(-6)^2-4#
#f(-6)=36-4#
#f(-6)=32#

#g(-6)=4(-6)-3#
#g(-6)=-24-3#
#g(-6)=-27#

#f(-6)-g(-6)#
#32-(-27)#
#32+27#
#59#