Answer:
(3x-4)(x-5)
Step-by-step explanation:
This is in the form
ax²+bx+c.
To factor this, we find factors of a·c that sum to b; this means factors of 3(20) = 60 that sum to -19:
60 = 1(60) or -1(-60); 2(30) or -2(-30); 3(20) or -3(-20); 4(15) or -4(-15); 5(12) or -5(-12); 6(10) or -6(-10). The only of these that sum to -19 are -4 and -15. This means we will split up -19x into -4x and -15x:
3x²-4x-15x+20
Next we group the first two terms and the last two terms:
(3x²-4x)+(-15x+20)
Factor out the GCF of each group. For the first group, this is x:
x(3x-4)
For the second group, this is -5:
-5(3x-4)
The common factor for these two groups is (3x-4):
(3x-4)(x-5)
Answer:
8:15 am
Step-by-step explanation:
Count back from 9:05 50 minutes. I did it in parts.
First, I went back 5 minutes:
9:05 am 50 minutes elapsed
9:00 am 45 minutes elapsed
Then I went back the rest of the 45 minutes
9:00 am 45 minutes elapsed
8:15 am 0 minutes elapsed
This is cheating. You aren’t allowed to ask for help strate out.
Answer:
Step-by-step explanation:
hello :
x ÷ y for x = 8 and y = 16 means : 8/16 = 8/(2×8) = 1/2
The answer is 2x^2-3x-2.
To solve this, you take f(x)-g(x) which is 2x^2-5-3x+3. This simplifies to 2x^2-3x-2.
