Simplify the given polynomials. Then, classify each polynomial by its degree and number of terms. Polynomial 1: (1 - 1)(6x +
+ 2)
Polynomial 2: (7.12 + 3x) – 3(2172 – 12)
Polynomial 3: 4(5x2 - 95 + 7) + 2(-10x2 + 181 - 13)
6.12 + 21 - 1
2
linear
trinomial
binomial
612 - I - 1
6
constant
Polynomial
Simplified Form
Name by
Degree
Name by
Number of Terms
1
quadratic
2
33 + 4
3
monomial
entum. All rights reserved.

starting with:    

5 + x - 12 = 2x - 7   

5 + x - 12 - x = 2x - 7 - x (subtract x from both sides)   

5 - 12 = x - 7 (combine and cancel x's from both sides)   

5 - 12 + 7 = x - 7 + 7 (add 7 to both sides)   

0 = x (add numbers together on both sides)       

so in order for the equation to be true, x must be 0.   

trying x = -0.5   

5 + x - 12 = 2x - 7 (original equation)   

5 + -0.5 - 12 = 2(-0.5) - 7 (plug in value of x)   

5 + -0.5 - 12 = -1 - 7 (did multiplication)   

-7.5 = -8 (did addition on both sides)       

since -7.5 is obviously not equal to -8, the value of -0.5 for x is wrong.   

trying x = 0   

5 + x - 12 = 2x - 7 (original equation)   

5 + 0 - 12 = 2(0) - 7 (plug in value of x)   

5 + 0 - 12 = 0 - 7 (did multiplication)   

-7 = -7 (did addition on both sides)       

since -7 equals -7, that demonstrates that the value of 0 for x is correct.   

trying x = 1   

5 + x - 12 = 2x - 7 (original equation)   

5 + 1 - 12 = 2(1) - 7 (plug in value of x)   

5 + 1 - 12 = 2 - 7 (did multiplication)   

-6 = -5 (did addition on both sides)       

since -6 is obviously not equal to -5, the value of 1 for x is wrong.

correct answer is c. just did it

step-by-step explanation:

-1   1/6.   you dont subtract the denominators

step-by-step explanation: