Mathematics, 14.06.2021 07:40 jtroutt74

Please show working out, the answer is 3ksquared+9k-4. I have many questions similar to this, I just get confused when I’m meant to put a + or a - sign between each number. Please help me with the one above, and explain what sign goes where. Thank you!

Please show working out, the answer is 3ksquared+9k-4. I have many questions similar to this, I jus

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