Answer:
this was already answered
Step-by-step explanation:
Answer: B
Step-by-step explanation: I got it right.
The expression, on simplification using the laws of the exponent can be written as <u>- (1/27)</u>.
Exponents are of the form aˣ, read as " <u>a to the power x</u>", function as a multiplied by itself x number of times, and are used in a numerical and algebraic expression.
To simplify these expressions, we use the following laws of the exponents:
In the question, we are asked to simplify the expression, .
The expression can be solved using the laws of exponent as follows:
=
= {Using the law of exponent: }
= {Using the law of exponent: }
= 1/(-27)
= - (1/27).
Thus, the expression, on simplification using the laws of exponent can be written as <u>- (1/27)</u>.
Learn more about laws of exponents at
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The quadratic formula is:
(-b ± √b² - 4ac)/2a
So first we need to find what a, b, and c are by making the equation equal to 0.
We can do this by adding 13x and subtracting 10 to get -7x² + 13x - 10, so your values would be a = -7, b = 13, and c = -10.
Now you can just substitute them into the equation:
(-13 ± √13² - 4 × -7 × -10)/-14
I believe that is your answer in standard form, so I hope this helps!