subject
Mathematics, 25.10.2019 09:43 rupanti19p4sqpj

Situation 1:

f
(
x
)
=
14
x
−
12
f(x)=14x−12
g
(
x
)
=
7
x
2
−
3
x
−
11
g(x)=7x2−3x−11

mark is asked to find
(
g
−
f
)
(
x
)
.
(g−f)(x).
this is his work:

14
x
−
12
−
7
x
2
−
3
x
−
11
−
7
x
2
+
11
x
+
23
14x−12−7x2−3x−11−7x2+11x+ 23

find mark's mistakes (there are more than one). explain what he did wrong and how to fix it.

ansver
Answers: 2

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Situation 1:

f
(
x
)
=
14
x
−
12
Questions
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