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- Richard J. Raridon

I can answer questions in physics, chemistry, algebra, trigonometry

Have answered 10,000 questions on AskMe.com in the past two years

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chemistry and physics journals

BA in math and physics, MA in physics, PhD in chemistry

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An algebraic expression is called a monomial if it has only one term, such as -3x or 7xy/9. Two terms are called a binomial and three terms trinomial. Beyond that it's a polynomial. I've been doing algebra

First, divide each equation by 5 to get -19A+4B= 8 and -4A-19B =20. Multiply the first equation by 19 to get -361A+76B = 15 Multiply the second equation by 4 to get -16A-76B = 80 Add those two to

No, b^2 and -b^2 are not the same. with (-b^2)(a) you're not squaring -b, as I indicated previously, that would be (-b)^2 In your last statement, a does not become a negative value. It's like -(a)b^2

Your answer -k^2a makes it look like 2a is the exponent whereas a multiplies the quantity -k^2. (-k^2)(a) is equivalent to (-ak^2). In your example, b^2 is 9 in both cases. If it had been (-b)^2 then

I'm also Ricardo - Richard I solved it for 14 in a few minutes. First, I recognized that the big numbers had to be in the middles and not at the corners. 10 can only be paired with 1 & 3 so that gives

Algebra

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