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What is the factor of ab?
The factor of ab refers to the numbers or variables that can be multiplied to produce the term ab. In this case, the factors of ab are a and b. Factors are numbers or variables that can divide into a term without leaving a remainder. Therefore, the factors of ab are a and b because they can be multiplied together to result in the term ab.
Why is a negative times a negative a positive?
Here is a proof. Let a and b be any two real numbers. Consider the number x defined as x = ab + (-a)(b) + (-a)(-b). We can write this out differently as x = ab + (-a)[ (b) + (-b) ] Then, by factoring out -a , we find that x= ab + (-a)(0) = ab + 0 = ab. Also, x = [ a + (-a) ]b + (-a)(-b) And by factoring out b, we find that x=0 * b + (-a)(-b) = 0 + (-a)(-b) = (-a)(-b). Therefore x = ab and x = (-a)(-b) Then, by the transitivity of equality, we have ab = (-a)(-b).
Two fractions whose product is 1 are known as?
Reciprocals. Example (a/b)(b/a)=(ab/ab)=1
Sum and difference of two cubes?
a3 + b3 = (a + b)(a2 - ab + b2) a3 - b3 = (a - b)(a2 + ab + b2
What is the GCF of ab and bc?
The GCF is b.
