Question

I only need the step by step process I know the answer. emergency someone please answer! Will mark best answer

Answer 1

Step-by-step explanation:

1. y=(x-2)²-9

Using Formula (a-b)²=a²-2ab=b²

y=(x²-4x+4)-9

y=x²-4x-5

Using Mid term Break

y=x²-5x+x-5

y=x(x-5)+1 (x-5)

y=(x+1)(x-5)

2. y= -(x-5)²+16

Using the same formula as above

y= -(x²-10x+25)+16

y= -x²+10x-25+16

y= -x²+10x -9

Taking (-) as Common

y= -(x²-10x+9)

y= -(x²-9x-x+9)

y= -[x(x-9)-1(x-9)]

y= -(x-1)(x-9)