Math, asked by areebaferose, 5 hours ago

Let f(x) = 5x + 2. What is the value of f−1(72)?

Answers

Answered by krishhhhnna

1

Answer:

The answer is:

=-59/9

Step-by-step explanation:

f(x)=x²-5x+7

f(2)=2²-5.2+7=4-10+7=11-10=1

f(-1)=(-1)²-5.(-1)+7=1+5+7=13

f(1/3)=(1/3)²-5(1/3)+7=1/9-5/3+7=49/9

∴, f(2)-f(-1)+f(1/3)

=1-13+49/9

=58/9-13

=-59/9

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