Q. Simplify the expression completely.−2−49−16+431000−3216Answer:
Simplify −2−49: First, we will simplify each term in the expression separately.−2−49 involves the square root of a negative number, which indicates the presence of an imaginary number.
Simplify 16: The square root of −49 is 7i, where i is the imaginary unit. Therefore, −2−49 becomes −2×7i, which simplifies to −14i.
Simplify 431000: Next, we simplify 16. The square root of 16 is 4, so 16 simplifies to 4.
Simplify 3216: Now, we simplify 431000. The cube root of 1000 is 10, because 103=1000. Therefore, 431000 simplifies to 4×10, which is 40.
Combine simplified terms: Finally, we simplify 3216. The cube root of 216 is 6, because 63=216. Therefore, 3216 simplifies to 6.
Combine real numbers: Now we combine all the simplified terms: −14i−4+40−6.
Final simplified expression: Combining the real numbers gives us: 40−4−6, which simplifies to 30.
Final simplified expression: Combining the real numbers gives us: 40−4−6, which simplifies to 30.The final simplified expression is 30−14i, which includes a real part and an imaginary part.