Tyjanae Tyjanae
  • 23-07-2015
  • Mathematics
contestada

Find the product mentally.

(2j + 7)(2j - 7)

A: 4j2 + 49
B: 4j2 - 49
C: 2j2 - 28j - 49

Respuesta :

Аноним Аноним
  • 23-07-2015
(2j+7)(2j−7)

=(2j+7)(2j+−7)

=(2j)(2j)+(2j)(−7)+(7)(2j)+(7)(−7)

=4j2−14j+14j−49

=4j2−49

Answer Link
averyverydumbguy
averyverydumbguy averyverydumbguy
  • 10-07-2019

Answer:

B

Step-by-step explanation:

2j*2j=4j^2

7*-7=-49

Answer Link

Otras preguntas

why is the gcf of two numbers is sometimes one
Trade increased in Europe because of the interest in eastern goods created by 1. Marco polo's book 2. Recapture of Constantinople by the Byzantines 3. the crusa
What is the value of x? 14-x=21
How many lines of symmetry does a heart have ?
What is the reducing agent during the Calvin cycle?
the development of cash-crop economies promotes globalization by
From, the map, in what ocean are the Galapagos islands found? Where are they in relation to the United states?
What two new social classes emerged during the Industrial Revolution? industrial class middle class urban working class lower class
What is the value of x? 14-x=21
What is the Prime Factorization of 27720?