yummyGggg yummyGggg
  • 04-08-2017
  • Mathematics
contestada

What is the correct expansion of (3x-2)(2x^2+5)

Respuesta :

jessla314
jessla314 jessla314
  • 04-08-2017
3x*2x^2=6x^3
3x*5=15x
-2*2x^2=-4x^2
-2*5=-10
6x^3+15x-4x^2-10=
6x^3-4x^2+15x-10
Answer Link
apologiabiology
apologiabiology apologiabiology
  • 04-08-2017
foil or whatever
just multiply

remember
(a-b)(c+d)=ac-bc+ad-bd
and
[tex](ax^m)(bx^n)=(a)(x^m)(b)(x^n)=abx^{m+n}[/tex]

so

(3x-2)(2x²+5)=
(3x)(2x²)+(-2)(2x²)+(3x)(5)+(-2)(5)=
6x³-4x²+15x-10
Answer Link

Otras preguntas

[tex]3-\sqrt{x} 1-16x^{2}[/tex]
difference between diabetes mellitus and diuresis?? please help​
The length of the hypotenuse of a 30​ -60 ​-90 triangle is 32. What are the lengths of the​ legs?
HOW CAN I CREATE A PERFECT SALES STRATEGY?
a coin is tossed and a number cube is rolled. What is the probability of tossing heads and rolling a 3 or a 5
How can I improve in non verbal communication
how is the conflict resloved in the orphan boy​
ask students to find the one word substitute for the givan meaning burning,strongly,bright-fiery .............answer me ​
Write the importance of energy in 9 points
For example, we can take Water In (A) Water has same mass and great volume In (B) Water has same mass and lower volume Will there be any change in its density t