clumsyrosie clumsyrosie

03-04-2021
Mathematics

contestada

Expand each of the following expression algebraic identities:
a) (7x+9)²
b) (1-3x)²
c) (5x+8) (5x-8)

Respuesta :

sandlanasandlana839 sandlanasandlana839

03-04-2021

Answer:

a)49x^2+126x+81

b)3x^2-6x+1

c)25x^2-64

Step-by-step explanation:

a)(7x+9)(7x+9)

49x^2+63x+63x+81

49x^2+126x+81

b)(1-3x)(1-3x)

3x^2-3x-3x+1

3x^2-6x+1

c)(5x+8)(5x-8)

25x^2-40x+40x-64

25x^2-64

Answer Link

Otras preguntas

The thin membrane that divides the outer ear from the middle ear is known as the_____. cochlea eardrum pinna

Which values best approximate the solutions of –1.5x2 + 4x + 2.2 = 0 A. no real solutions B. 2.2 and 3.1 C. –0.5 and 3.1 D. –0.5 and 2.2

Which investment produces a $5 hourly profit for a candy shop earning $1 profit per pound of candy? Worker at $10 per hour, producing eight pounds of candy per

Write a summary of the following passage: Full-time employees earn vacation days at the rate of one day per month, or twelve days per year. Vacation time may b

Evaporation is the process where a liquid changes from its _____________ state to a ______________ state.

If you help me ill help you pease

Do you think that rich people nowadays care for their souls? If you were rich today, would you share your wealth with the poor?

if you can't type it out can you just explain how to do it?

Answer the question above

David hikes 2 1/4 miles in 1/2 an hour. If he walks for 7 hours how long will he have gone