1) Look for common factors. You see that y^2 is a factor of every term so you can remove it to get
... = (y^2)(3x^2 -2x -8)
The quadratic in x can be factored by your favorite method. There is one called by various names that has you look for factors of (3)(-8) that add to (-2). When the quadratic is written as ax^2+bx+c, you're looking for factors of the product "ac" that add to "b". Of course, you know that
... -24 = -24*1 = -12*2 = -8*3 = -6*4
the last factor pair shown here has a sum of -2, so our factorization is
... = (y^2)(3x -6)(3x +4)/3 . . . . . the "a" coefficient is repeated in each factor (at first), then divided out
... = (y^2) (x -2) (3x +4)
2) You recognize this expression to be of the form
... (x +a)^2 = x^2 +2ax + a^2
where a=5. As a result, you know the factorization is
... = (x +5)^2
3) You recognize this expression to be the difference of squares, so you know the factorization is
... a^2 - b^2 = (a -b)(a +b)
where a=x and b=6. As a result, you know the factorizatin is
... = (x -6) (x +6)
Answer:
y = 6
Step-by-step explanation:
(y + 6) × y = 72
y = negative number²
When negative numbers are squared they become positive.
y = 6
<u>Check</u>
(6 + 6) × 6 = 72
12 × 6 = 72
U = -1
17* -1 = -17
-17 - 15 = -32
-32 - -6 = -26
-26 - -18 = -8.
u = -1
Hope this helped☺☺
Answer:
Well 0.5 is the same as 1/2 but I'll try to help.
Step-by-step explanation:
1/9+1/8 is 0.2361. That would honestly be closer to zero but the way that it is worded, it is closer to 1/2 because you are using fractions in the problem. If you were using decimals, I would use 0.5
