kailadeshields kailadeshields

15-02-2017
Mathematics

contestada

Simplify this expression. 3x2(7x2 − 9)
A) 21x2 − 9
B) 21x2 − 27x2
C) 21x4 − 9
D) 21x4 − 27x2

Respuesta :

SuperLegend SuperLegend

15-02-2017

3x2(7x2 − 9)
Multiply 3x^2 by 7x^2 and -9(Use distributive property)
Final Answer: D.) 21x^4 - 27x^2

Answer Link

Otras preguntas

how to solve x to the power of 2 = 14

what is 69/25 as a terminating decimal

The ocular and objective lenses are found at the top and bottom of what part of a microscope?

three consecutive even integers have a sum of 168. what's the value of the largest integer?

List the perfect squares between 100 and 500 that are even numbers

An aircraft has a liftoff speed of 33 m/s. what minimum constant acceleration does this require if the aircraft is to be airborne after a take-off run of 240m?

What is the coefficient of x in the expression x-2? Explain your reasoning.

placing 12 tiles side by side, Pete can make a 12-by-1 rectangle. Name two other rectangles Pete can make with 12 tiles

What's 45 out of 58 in percentage?

what is the value for the expression -5+ 5