nicholasphinx nicholasphinx

25-01-2021
Mathematics

contestada

Expand and simplify the following expressions : 1.(a-5)(a-7)
2.(x-2y)(3x+4)
3.(4x+3y)(4x-3y)
4.(6x-7y)(6x+7y)

Respuesta :

doiturself doiturself

25-01-2021

Answer:

1. (a-5)(a-7)

a2 - 12a + 35

2. (x-2y)(3x+4)

3x2 +4x - 6xy - 8y

3. (4x+3y)(4x-3y)

16x2 - 9y2

4. (6x-7y)(6x+7y)

36x2 - 49y2

(the twos after the letters means squared)

:)

Answer Link

Otras preguntas

Answer for brainliest!!

The freezing point of a certain alcohol is -114 celcius. The freezing point of a certain acid is -42 celcius. What is the difference between the freezing point

Need help on question 4. Anything is appreciated:)

Who is muslim? ramadan mubarak!

An angle whose measure is -302 degrees is in standard position. In which quadrant does the terminal side of the angle fall

The firm's short-run supply curve is the A) horizontal summation of the other firms' marginal cost curves. B) the portion of the firm's marginal cost curve th

what is the purpose of a biography?

3. Penelope invested $6650 into three investment accounts, earning 8%, 12.5%, and 7.5% simple interest per year. If the annual interest earned totaled $671.25 a

What property can we apply to isolate the term, 0.25f?

An isosceles triangle has an angle that measures 120°. Which other angles could be in that isosceles triangle? Choose all that apply. 50°, 120°, 70°, 30°