Answer:
9x² - 49
Step-by-step explanation:
A difference of squares factors in general as
a² - b² = (a + b)(a - b)
Given (3x + 7) with a = 3x and b = 7
Then the other factor is (3x - 7)
(3x + 7)(3x - 7)
= (3x)² - 7²
= 9x² - 49
7(2x - 3) = 1...distribute through the parenthesis
14x - 21 = 1.....step 1
14x = 22...step 2
x = 22/14 = 11/7 or 1 4/7
Answer:
3
Step-by-step explanation:
If there is a negative sign in front of a number when trying to find absolute value, remove the negative sign. This is vice-versa if there is no negative sign. Have a Great Day and Hope this Helps :)
When a point divide a line segment A (x1,y1) B (x2,y2) into a ration of a:b, the coordinates of that point is x1+[a/(a+b)](x2-x1), y1+[a/(a+b)](y2-y1)
so x=0+(2/3)(6-0)=4
y=4+(2/3)(8-4)=6&2/3 (mixed number 6 and 2 over 3)
(4, 6&2/3) is the answer.
Answer: 100
Step-by-step explanation:
3 x 25 = 75
4 x 25 = 100
