i need help factoring polynomials and knowing the steps to reach the answer. 1) x² - 7x + 10 as well as 2) 6r² + 19r - 20

1)  (x-2)(x-5)

2) (6r-5)(r+4)

Step-by-step explanation:

1)

It will just be x since the coefficient is 1

To figure out the second number you need to think of the multiples of 10.  

So either 2 and 5 or 1 and 10.  Since 2 and 5 add to 7 it's them.  

They're negative since 7 is and can still make a positive 10.

2)

This one is more just plugging and guessing to see which on works.

Find the multiples of both 6 and 20, afterwards plug in the multiples til you get 19 in the final product.  

Since 20 was negative the one of the numbers would be negative.  

I can't explain it lol

statement #3: proof- ang is congruent to ang ecd : angles are congruent.  

step-by-step explanation:

1: the missing angles in statement #3  

a.) acb  

reason- the reason why the answer is acb is because angle ecd and angle acb are both the same size *that's what the word congruent means this is really simple.  

2: the missing word in reason #3  

c.) vertical  

reason- the reason why the answer is vertical is because the angles in that diagram on figure 2 is slanted, which is vertical, and the e and a both lay on vertical lines. along with the other's, but e and a are the 2 main points you want to focus on. and c is kind of like your starting point, because c is for both angles, not just one.  

i hope that was and understanding.

question: match the eqaution with its graph -8x - 5y = 40

answer: 8 x 5 = 40

x= absiss

y= orderly

so you have a proportional graph

question answered by

(jacemorris04)