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which equation has infinitely many solutions?
a.
-x + 1 = x - 1
b. -x + 1 = 1 -
c. -x - 1 = x + 1
d. -x - 1 = -x + 1

Use addition and subtraction to simplify the following polynomials. a. add polynomials: (3 – 4x + 8x^2) + (–6 + 2x – 5x^2) step 1: rewrite the polynomials without the parentheses. step 2: write the polynomial in descending order and use parentheses around like terms. step 3: add the like terms identified in step 2 to simplify the polynomial. b. subtract polynomials: (3x – 5 – 7x^2) – (–2 + 6x^2 – 5x) step 1: rewrite the polynomials without the parentheses. remember to multiply each term in the second parentheses by –1. show your work. step 2: write the polynomial in descending order and use parentheses around like terms. step 3: add the like terms identified in step 2 to simplify the polynomial.

Determine the number of girls in a math class with 87 boys if there are 25 girls for every 75 boys

Which of the following graphs could represent a quartic function?