Answer:
(20 - 3x) + (20 - 7x) = 25 with x being the price of the item bought. (I think)
Step-by-step explanation:
I believe this would be the equation, I'm not sure what the answer would be though, sorry about that.
Ans: B
The method (a^2-b^2) is considered as one of the many ways of factorisation.
Hope this can help.
Answer:
a
Step-by-step explanation:
a
A should equal to -3 or -4 depending on whether what the equation is.
For example, if it's (1/9)^(a+1)=81^(a+1) x 27^(2-a), then the answer is -4.
But if it's the other way stated above, then it should be -3.
Hope this helps.
