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hbked23
17.07.2019 •
Mathematics
What method(s) would you choose to solve the equation: x^2 + 2x - 6 = 0 a )quadratic formula, graphing; the equation cannot be factored easily since the numbers are large. b) quadratic formula, completing the square or graphing; the coefficient of x2 term is 1, but the equation cannot be factored. c) square roots; there is no x-term. d) factoring; the equation is easily factored.
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Ответ:
Ответ:
a = -3/4
Step-by-step explanation:
1/64 = 16 ^(2a)
4^ -3 = 2^4 ^(2a)
4^-3 =2^(8a)
The bases are not the same so the exponents cannot be equated yet
2^2^-3 = 2 ^(8a)
2 ^ (-6) = 2 ^(8a)
Now the bases are the same so we can equate the exponents
-6 = 8a
Divide each side by 8
-6/8 =a
-3/4 =a