3 years ago

F(x) = 6x + 5. Work out, simplifying fully: 2f(x) + 6.

1 answer:

8 0

Replace the f(x) in the second equation will 6x + 5 so then it looks like 2(6x + 5) + 6. Then distribute so it’s 12x + 10 + 6 and then simplify to 12x + 16

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Hi there!

For these two equations, we would be using PEMDAS...

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Read 2 more answers

One of the solutions to the equation 5x^2+bx+12=0 is − 4/5. Find the other solution.

gayaneshka [121]

Answer:

b=-19

Step-by-step explanation:

We know that one of the solutions is x=-4/5

That is a solution to x. So if we plug in (-4/5) into the x in the equation, then it should equal 0.

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Now, just solve for b.

5(16/25)+b(4/5)+12=0

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