Math, asked by sanjeetajain4, 1 month ago

7^a+4 × 5^b = 1715 then a×b​

Answers

Answered by superlucky04
0

Answer:

-1

Step-by-step explanation:

7^(a+4) × 5^(b) = 5¹ × 7³

Comparing the equation

7^(a+4) = 7³

a + 4 = 3

a = -1

Similarly,

5^(b) = 5¹

b = 1

Now,

ab = 1 × -1 = -1

HOPE IT HELPS.......

JAI HIND

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