The number is x
it is negative
the square is 28 more than 3 times itself
x²=28+3x
minus (28+3x)
x²-3x-28=0
factor
(x-7)(x+4)=0
set to zero
x-7=0
x=7
this is not the answer because we were told the number was negative
x+4=0
x=-4
correct
the number is -4
test
(-4)²=28+3(-4)
16=28-12
16=16
check
the number is -4
Answer:
g(10) = 21
g(0) = 1
g(10) = 21
g(22) = 45
g(28) = 57
g(16) = 33
Step-by-step explanation:
g(x) = 2x + 1
Then in order to find g(10), replace x over 10
g(10) = 2(10) + 1
g(10) = 20 + 1
g(10) = 21
so g(10) = 21
keep doing this to all of the problems and it should be answered the same way.
I can't read all the question but my guess is by half.
Answer:
4x^2-14x+6
Step-by-step explanation:
(4x-2)(x-3)
*use box method
