Tengo que poner una exprecion algrebraica relacionando la cantidad de plegados con la cantidad de rectangulos pequeños que se forman osea de cada uno de los rectangulitos no uniendolos para fomar mas :v entienden? PORFA AYUDA

Select the quadratic that has root x = 8 and x = -5

Girardo is using the model below to solve the equation . girardo uses the following steps: step 1 add 4 negative x-tiles to both sides step 2 add 1 negative unit tile to both sides step 3 the solution is which step could be adjusted so that gerardo's final step results in a positive x-value? in step 1, he should have added 4 positive x-tiles to both sides. in step 1, he should have added 3 negative x-tiles to both sides. in step 2, he should have added 4 negative unit tiles to both sides. in step 2, he should have added 1 positive unit tile to both sides.

Two friends are reading books. jimmy reads a book with 21,356 words. his friend bob reads a book with one-and-a-half times as many words. which expression represents the number of words bob reads?