1/(8-9t+14-24t)/11t=(22-33t)/11t=11*(2-3t)/11t=(2-3t)/t
2. (b-1-b+y)/6y=(y-1)/6y
3. (3a+3-2a-3)/2a+3=a/2a+3
4. 1). a*(a+b)/(a+b)*7a=1/7
2). 1/7:(3a-4b)/7= 1/7*7/(3a-4b)= 1/(3a-4b)
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
1/(8-9t+14-24t)/11t=(22-33t)/11t=11*(2-3t)/11t=(2-3t)/t
2. (b-1-b+y)/6y=(y-1)/6y
3. (3a+3-2a-3)/2a+3=a/2a+3
4. 1). a*(a+b)/(a+b)*7a=1/7
2). 1/7:(3a-4b)/7= 1/7*7/(3a-4b)= 1/(3a-4b)
8–9t+14–24t 22–33t 11(2–3t)
1) -------------------- = ---------- = ----------
11t 11t 11t
2–3t
= --------
11t
b–1–b+y y–1
2) ------------- = ------
6y 6y
3(a+1)–(2a+3) 3a+3–2a–3 a
3) -------------------- = ---------------- = -------
2a+3 2a+3 2a+3
a•(a+b)•7 1
4) ------------------------- = ---------
(a+b)•7a•(3a+4b) 3a+4b
64–48а+12а^2–а^3
Вариант 2
р+3+7–2р 10–р
1) --------------- = --------
р+4 р+4
а+3–а+b 3+b
2) -------------- = ------
2b 2b
2(5–3b)–7(b+6) 10–6b–7b–42
3) ----------------------- = -------------------- =
b+6 b+6
–13b–32
= -------------
b+6
(x+y)•6y•8 2
4) ------------------ = ---
12x•2(x+y)•y x