To simplify exponential expressions, we can use the required rules from exponents.
Problem 1 :
x4/x
Solution :
Step 1 :
x4/x1
Step 2 :
= x4 · x-1
Step 3 :
Since the bases are the same, use one base and combine the powers.
= (x4 – 1)
= x3
Problem 2 :
4b2 × 2b3
Solution :
Step 1 :
4b2 × 2b3
Step 2 :
Since the bases are the same, use one base and combine the powers and multiply the coefficients.
= 8(b2 + 3)
= 8b5
Problem 3 :
a6b3/ a4b
Solution :
Step 1 :
a6b3/a4b1
Step 2 :
= a6b3 · a-4b-1
Step 3 :
Since the bases are same, combine the powers.
= (a6 – 4 · b3 – 1)
= a2 · b2
Problem 4 :
18x6/3x3
Solution :
Step 1 :
18x6/3x3
Step 2 :
Dividing the coefficients.
6x6/x3
Step 3 :
= 6(x6 · x-3)
Since the bases are same, use one base and combine the powers.
= 6(x6 – 3)
= 6x3
Problem 5 :
5x3y2/15xy
Solution :
Step 1 :
5x3y2/15xy
Step 2 :
Dividing the coefficients.
= x3y2/3xy
Step 3 :
= 1/3 (x3y2 · x-1y-1)
Since the bases are same, use one base and combine the powers.
= 1/3(x3 – 1 · y2 – 1)
= 1/3 (x2 · y)
Problem 6 :
24t6 r4/15t6r2
Solution :
24t6 r4/15t6r2
Dividing the coefficients.
= 8t6 r4/5t6r2
= 8/5(t6 r4 /t6r2)
= 8/5(t6 – 6 · r4 – 2)
= 8/5(t0 · r2)
= 8r2/5
Problem 7 :
3pq3 × 5p5
Solution :
= 3pq3 × 5p5
= 15(p1 + 5 · q3)
= 15p6q3
Problem 8 :
x12/(x3)2
Solution :
x12/(x3)2
= x12/x6
= x12 · x-6
= x(12 – 6)
= x6
Problem 9 :
(t6 × t4)/(t2)3
Solution :
(t6 × t4)/(t2)3
= (t6 × t4)/(t6)
= t4
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