Answer:
what is the question?.....
Answer:
Options (3), (4) and (5)
Step-by-step explanation:
1). a² - 9a + 7ab + 63b
= a(a - 9) + 7b(a + 9)
Now we can not solve this problem further.
Therefore, can't be factored by grouping.
2). 3a + 4ab - b - 12
= a(3 + 4b) - 1(b - 12)
We can't solve it further.
Therefore, can't be factored by grouping.
3). ab + 6b - 2a - 12
= b(a + 6) - 2(a + 6)
= (b - 2)(a + 6)
We can be factored this expression by grouping.
4). x³ + 9x²+ 7x + 63
= x²(x + 9) + 7(x + 9)
= (x² + 7)(x + 9)
Therefore, the given expression can be factored by grouping.
5). ay² + a - y² - 1
= a(y² + 1) - 1(y² + 1)
= (a - 1)(y² + 1)
This expression can be factored by the grouping method.
Options (3), (4) and (5) are the correct answers.
Answer: y-6= 2(x-2)
Step-by-step explanation:
find the slope then put it in point slope form.
#1
y= 5x-7
y= -2/3x+3
#2
y=4/5x (+0)
y= -5/4x(+0)
The answer would be n=2
Hope I helped (｡◕‿◕｡)
btw if u need steps find them here|
https://www.symbolab.com/solver/step-by-step/%5Cfrac%7Bn%7D%7B50%7D%3D%5Cfrac%7B5%7D%7B25%7D
