Q. Simplify the expression to a + bi form:(−6−7i)(−3+5i)Answer:
Distribute First Term: Distribute the first term of the first complex number across the second complex number.(−6)(−3)+(−6)(5i)=18−30i
Distribute Second Term: Distribute the second term of the first complex number across the second complex number.(−7i)(−3)+(−7i)(5i)=21i−35i2Since i2=−1, we can simplify −35i2 to 35.
Simplify Imaginary Parts: Combine the real parts and the imaginary parts from Step 1 and Step 2.Real parts: 18+35=53Imaginary parts: −30i+21i=−9i
Combine Real and Imaginary: Write the final answer in a+bi form.The simplified expression is 53−9i.
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