-2x + 6y= 18 is in standard form, use y=mx+b to solve that.
Answer:
The answer is 2
Step-by-step explanation:
2 = 6 + 4n/ 7
cross multiplication
2 x 7 = 6 + 4n
14 = 6 + 4n
4n = 14 -6
4n = 8
n = 8 / 4
n = 2
Answer:
(x-2)(x-4)
Step-by-step explanation:
First into the X puzzle
8 is on top and 6 is on bottom
Find to number at multiples to 8 and adds to 6
the two numbers are 2 and 4 Then write numbers into factor form
that is (n-2)(n-4)
the factor form should multiples to get F(n)=n²-6n+8
the zeros are 2 and 4 Btw
I hope this helps you
Answer:
It can be factorised
Step-by-step explanation:
Given
x²y² + 36 - 4x² - 9y² ( rearranging )
x²y² - 4x² - 9y² + 36 ( factor first/second and third/fourth terms )
= x²(y² - 4) - 9(y² - 4) ← factor out (y² - 4) from each term
= (y² - 4)(x² - 9)
Both factors are a difference of squares and factor in general as
a² - b² = (a - b)(a + b)
Thus
y² - 4
= y² - 2² = (y - 2)(y + 2) , and
x² - 9
= x² - 3² = (x - 3)(x + 3)
Hence
x²y² + 36 - 4x² - 9y² = (y - 2)(y + 2)(x - 3)(x + 3)
Answer:
d
Step-by-step explanation:
you are going to multiply the sides together.
(4x-5)(2x+7) multiply each of the first two terms by each of the second two terms. And then combine like terms.