Evaluate the expression

(x + 3)(y - 2) , if x = -2, and y= 6

The answer is 4

Step-by-step explanation:

Given,

Now, the expression

∴

hope you have understood this...

pls mark my answer as the brainliest

hello from mrbilldoesmath!

answer:

a(n) - a(n-1) -3

discussion:

this ones a bit interesting. given a(n) = 5 - 3n consider this:

a(n-1) = 5 - 3(n-1)

          = (5 - 3n) + 3             => but a(n) = 5 - 3n, the first term

          = a(n)   + 3                 => subtract 3 from both sides

a(n-1) -3 = a(n)  

or

a(n) - a(n-1) -3

you,

mrb

fwms@lil_ben06

step-by-step explanation: