Answer:
y = 36
Step-by-step explanation:
4(9) = 4 x 9 = 36
Answer:
(x+1)(x-1)(x+3)(x-3)
Step-by-step explanation:
x4-10x^2+9
Group expression so that the coefficients of the x^2 terms add up to +9.
= x^4 -9x^2 - x^2+9
match coefficients in both groups
= x^4 -9x^2 - (x^2-9)
factor each group
= x^2 (x^2-9) - 1(x^2-9)
now factor out the common factor (x^2-9)
= (x^2-1)(x^2-9)
Finally, factor each quadratic factor
= (x+1)(x-1)(x+3)(x-3)
Answer: second one is the answer
Hope this helps, im sure of my answer
Answer:
x= -2 or 4
Step-by-step explanation:
|1-x|=3
1-x=3 or -(1-x)=3
x= -2 or 4
