The square of a number added to 3 times the number is 28

the number is 5

Step-by-step explanation:

Let the number be , then the square of the number means .

Therefore:

subtract 3 from both sides

find the square root of both sides

step-by-step explanation:

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.