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

Which of the following correctly uses a semicolon? My cat; never likes to go to sleep in her cat bed. She stays up all night; making growling noises. It is impo

for f(x)=x+3 and g(x)=4x+5 find the following functions(simplify answers) (f*g)(x)= (g*f)(x)= (f*g)(-1)=

What differentiates baseline activities from health-enhancing activities?

Rachel deposited $200 into an account that earns 6% interest compounded twice a year for 10 years

Are all Narcissists pathological liars?

Tamala had a bad day because she forgot her wallet keys, sunglasses, and backpack at home. What correction, if any, should be made to this sentence? A. Remove t

Why is RNA chemically unstable?

Which functions have a positive rate of change and which have a negative rate of change? Column A Column B 1. 2x – 3y = 9 A. positive B. negative 2. y = −4x +

Why were political machines difficult to break up?

8. Which statement best describes the Richter scale? A. It's named after a scientist who studied tornadoes. B. It's a numerical rating system that measures