Answer: For the first one, s= -2
Second one, s=-4
Third one, q= -3
Step-by-step explanation:
Answer:
If f(1)=0 then 1 is a root and (x-1) is a factor of f(x). divide f(x) by (x-1). you now have a quadratic. Find its roots by methods you know.
actually this factors by grouping:
f(x)=x³+3x²-x-3
= x²(x+3)-1(x+3)
=(x+3)(x²-1)
=(x+3)(x-1)(x+1) // difference of squares
By zero product property roots are
-3, -1, 1
The answer for 3x/6+1=7 is 12
Answer:
Step-by-step explanation:
"A number is<u> [WHAT?] </u>of another number." It appears the <u>WHAT??</u> is missing. If it is a word such as "twice," it can be solved in this fashion.
Let the numbers be X and Y, with Y the larger number.
A number is <u>twice</u> another number: Y = 2X
The difference of the numbers is 18: Y - X = 18
Use the first equation (Y = 2X) in the second by replacing "Y" with (2X):
Y - X = 18
2X - X = 18
X = 18
Y = 2X, so Y = 36
Answer:
I'm doing the exact same question rn sorry if its wrong, try D.
