Which expression is equivalent to (4 + 6i)2?

(4 + 6i)² = -20 + 48i

Step-by-step explanation:

Here given square of complex number that is:

(4 + 6i)²

Now use the square property :

(a + b)² = a² + b² + 2ab

(4 + 6i)² = 4² + (6i)² + 2(4)(6i)

(4 + 6i)² = 16 + 36i² + 48i

(4 + 6i)² = 16 - 36 + 48i                 (value of i² = -1)

(4 + 6i)² = -20 + 48i

That's the final answer.

I hope its help you.

plants store their excess carbohydrate in the form of starch so that it could be used as energy source later on. the excess carbohydrate is converted into starch in the plastid i.e. chloroplast & this process occurs in the presence of sunlight. it is an insoluble polymer of glucose which gets stored in cell organelles named as amyloplasts. in some plants, starch is also stored in roots and embryos.

it’s the first one your welcome