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Find the interval on whitch the expression is defined:?x?2-7x-8 That’s the square root of the trinomial (x squared - 7x - 8) I am thoroughly confused- they gave us the answers, but we need ...

ide437 Answered:

Algebraic expressions can be multiplied together. An algebraic expression may consist of a number ( coefficient ), a letter ( variable, and/or an exponent.

When you multiply variables with exponents, you can add the exponents if the variables are the same.

Some problems require factoring algebraic expression. to factor means to

find and separate numbers that have been multiplied. In an expression of four or more terms, you can use the method of factoring by grouping to factor the expression.