Question

1_1 Solving problems that involve the use of simple quadratic equations, using personal procedures and inverse operations.

_According to the theme seen on television in the Aprende en Casa II program, solve lesson I of your textbook problem number 2 on page 19, sections a) through g) Take a photo and add it to the task .

_ WRITE DOWN THE FOLLOWING QUADRATIC OR SECOND-GRADE EQUATIONS PROBLEMS IN YOUR NOTEBOOK. SET UP AND PERFORM THE EQUATIONS, AT THE END TAKE A PHOTO AND ADD IT TO THE TASK

a) A square piece of land has an area of ​​676 cm2. How long is this piece of land per side?

b) A square piece of land has an area of ​​324 m2. How long is this piece of land per side?

c) The square of a number plus 7 is equal to 151. What is that number?

d) The square of a number plus the same number equals 132. What number is it?

Answer 1

Answer:

a)26 b)18 c)12 d)-12,11

Step-by-step explanation:

a)A square piece of land has an area of ​​676 cm2.

Area of the Square=a^2

a^2=676

a=26

b)A square piece of land has an area of ​​324 m2.

Area of the Square=a^2

a^2=324

a=18

c)let the number be x

  Square of the number is x^2

The square of a number plus 7 is equal to 151.

x^2+7=151

x^2=144

x=12

d)let the number be x

  Square of the number is x^2

The square of a number plus the same number equals 132.

x^2+x=132

x^2+x-132

x^2+12x-11x-132

x(x+12)-11(x+12)

(x+12)(x-11)

x=-12,11