3 years ago

Like and not like terms

2 answers:

4 0

Answer:

Like terms. In algebra, like terms are terms that have the same variables and powers. ... Unlike terms are two or more terms that are not like terms, i.e. they do not have the same variables or powers

Step-by-step explanation:

yulyashka [42]3 years ago

3 0

Answer:

i don't get the question

Step-by-step explanation:

i might be slightly dumb then

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Which value must be added to the expression x2 + x to make it a perfect-square trinomial?

Darya [45]

It need a lone number. so something like x2+x+3

4 0

3 years ago

10x +2y = 64

Musya8 [376]

Answer:

Step-by-step explanation:

$\left\{\begin{array}{ccc}10x+2y=64&\text{multiply both sides by 2}\\3x-4y=-36\end{array}\right\\\underline{+\left\{\begin{array}{ccc}20x+4y=128\\3x-4y=-36\end{array}\right}\qquad\text{add both sides of the equations}\\.\qquad23x=92\qquad\text{divide both sides by 2}\\.\qquad x=4\\\\\text{put the value of x to the first equation:}\\\\10(4)+2y=64\\40+2y=64\qquad\text{subtract 40 from both sides}\\2y=24\qquad\text{divide both sides by 2}\\y=12$