Write the product(2+7i)(2-7i) in the form a+bi
1 answer:
Answer:
53
Step-by-step explanation:
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(2 + 7i)(2 - 7i)
(2 * 2) + (2 * -7i) + (7i * 2) + (7i * -7i)
4 + -14i + 14i +
4 + (
= -1)
4 + (-49 * -1)
4 + 49
53.
53 is the result.
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