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3 years ago

Logbase3 (x+2)= log base3 (2x^2-1) steps 1 through 6

1 answer:

5 0

$log_3(x+2)=log_3(2x^2-1)\\3^{log_3(x+2)}=3^{log_3(2x^2-1)}\\x+2=2x^2-1\\-x -2 -x -2\\0=2x^2-x-3\\2*-3=-6\\Test factors -3 and 2:\\-3*2=-6, -3+2=-1\\(x-3)(x+2)=0\\Use slide and divide with 2:\\(x-3/2)(x+2/2)=0\\=>\\(2x-3)(x+1)=0\\Set both equal to 0:\\x+1=0\\x=-1\\2x-3=0\\2x=3\\/2 /2\\x=3/2\\$

Answer:

x=-1, 3/2

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Step-by-step explanation:

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After combining like terms and simplifying $1.17-0.07a+(-3.92a)$ we get $1.17-3.99a$

Step-by-step explanation:

We need to combine like terms to simplify the expression:

$1.17-0.07a+(-3.92a)$

Like terms: The terms are like when they have same variable and same exponent.

Solving:

$1.17-0.07a+(-3.92a)\\=1.17-0.07a-3.92a\\=1.17+(-0.07a-3.92a)\\=1.17+(-3.99a)\\=1.17-3.99a$

So, After combining like terms and simplifying $1.17-0.07a+(-3.92a)$ we get $1.17-3.99a$

Keywords: Solving Expressions

Learn more about Solving Expressions at:

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