Answer:
(x + 2) • (x - 19)
Step-by-step explanation:
Step-1 : Multiply the coefficient of the first term by the constant 1 • -38 = -38
Step-2 : Find two factors of -38 whose sum equals the coefficient of the middle term, which is -17 .
-38 + 1 = -37
-19 + 2 = -17 That's it
Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above, -19 and 2
x2 - 19x + 2x - 38
Step-4 : Add up the first 2 terms, pulling out like factors :
x • (x-19)
Add up the last 2 terms, pulling out common factors :
2 • (x-19)
Step-5 : Add up the four terms of step 4 :
(x+2) • (x-19)
Which is the desired factorization
Answer:
3
Step-by-step explanation:
a5 = a* r^4 ( from general formular of a GP)
= 243 * (1/3)^4 =. 243 * 1/81 = 3
Answer:
4
Step-by-step explanation:
4/8=2/4
Both equal 1/2
Answer:
x=10 , y=7
Step-by-step explanation:
x + y = 17
we know that ducks has 2 feet and sheep has 4 feet.
so, 2x + 4y = 48
x = 17 -y
2(17-y) + 4y = 48
34 - 2y + 4y = 48
2y = 48 -3 4
2y =1 4
y=7
x + 7 = 17
x = 17-7
x=10
