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hodyreva [135]
3 years ago
13

What are the solutions of the quadratic equation 49x2 = 9?

Mathematics
2 answers:
Troyanec [42]3 years ago
8 0

Answer:

the answer is B !

pishuonlain [190]3 years ago
7 0
49x^2 - 9 = 0
As there is no x term, we can pretty much guess we have a situation where we factlrise by something known aa difference of two squares, so to factorise it:
49 = 7^2
9 = 3^2
x^2 = (x)^2
so...
(7x - 3)(7x + 3) = 0
7x - 3 = 0 7x + 3 = 0
x = 3/7 x = -3/7
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