16. Divide 3x4
– 5x³ – 5 by 5x².
17. Is 8 , 15 ,17 a pythagorean triplets? Why? Justify.
18. Find the cube of – 0.02.
19. Factorize 16a² + 25b² – 40ab.
20. Find the value of m so that 5m
÷ 5³ = 57
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Answers
Answered by
0
Answer:
19 answer....... make that formula like (a-b) square
Answered by
1
Answer:
here it is
Step-by-step explanation:
17) yes it's a Pythagorean triplet because
(17)² = (8)²+(15)²
289 = 64 + 225
289 = 289
LHS = RHS
18) (-0.02)³= -0.000008
19) 16a²+25b²-40ab = (4a-5b)²
20)5^m ÷ 5^-3 =5^7
5^m+3 = 5^7
on comparing the values we can say that
m+3 = 7
m = 4
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