b) If p=4 and q=3, find the value of i) 9p2-5q2 ii) 2pq_3qp
Answers
Answered by
1
Answer:
Step-by-step explanation:
Given that, p = 4 and q = 3.
1 ) 9p² - 5q²
= 9 (4)² - 5 (3)²
= 9 (16) - 5 (9)
= 144 - 45
= 99 is the answer.
2) 2pq - 3qp
= 2 (4)(3) - 3 (3)(4)
= 24 - 36
= - 12 is the answer.
Answered by
0
Answer:
1) 99
2)-115
Step-by-step explanation:
1) 9(4)²-5(3)²
=9(16)-5(9)
=144-45
= 99
2) 2(4)³-3(3)⁴
=6(64)-3(81)
=128-243
= -115
Similar questions