starlipika
starlipika starlipika
  • 01-03-2019
  • Mathematics
contestada

i keep getting stuck on these kind of questions, do i expand or try and factorise more???​

i keep getting stuck on these kind of questions do i expand or try and factorise more class=

Respuesta :

jdoe0001 jdoe0001
  • 01-03-2019

[tex]\bf \begin{array}{llll} (a^2+4)^2&-&(a^2-2)^2\\\\ a^4+8a^2+16&-&(a^4-2a^2+4)\\\\ a^4+8a^2+16&-&a^4+2a^2-4 \end{array} \\\\\\ a^4-a^4+8a^2+2a^2+16-4 \\\\\\ 10a^2+12[/tex]

expand, thus you can sum like-terms if any.

Answer Link
xzervisx
xzervisx xzervisx
  • 28-03-2019

Answer:

10a^2+12

Step-by-step explanation:

Just use multiple indicies

Answer Link

Otras preguntas

What is the solstice? list some examples of each.
If a and b are odd integers, then a – b is an even integer. a and b are not odd integers a and b are odd integers a – b is an even integer a – b is not an
Solve by using the perfect squares method. x2 + 16x + 64= 0 a. –8 b. –16 c. 8 d. 16
last week at a festival, a man sold 3 times as many tie-dyed T shirts as silk screened shirts. He sold 168 shirts altogether. How many tie-dyed shirts did he se
What is the total number of electrons in a Mg2+ ion?(1) 10 (3) 14 (2) 12 (4) 24
Solve for x. Y=mx + b Answer choices: X=ym-b X=ym+b X=y/m+b X=y-b/m
what is 2 3/8 as a percent
solve for n -53+n=-28
Given the balanced equation representing a reaction: CaO(s) + CO2(g) ==>CaCO3(s) + heat What is the total mass of CaO(s) that reacts completely with 88 grams
Which two substances are covalent compounds? (1) C6H12O6(s) and KI(s) (2) C6H12O(s) and HCl(g) (3) KI(s) and NaCl(s) (4) NaCl(s) and HCl(g)