Which quadratic function has one real solution?
a.0 = 2(x + 7)(x – 5)
b.0 = (x – 3)(x – 3)
c.0 = 2.4(x – 2)(x + 2)
d.0 = (x – 2)(x – 1)

Simplify. 4+3/7x-2-2/7x a. 2-5/7x b. 6-1/7x c. 2+1/7x d. 6+5/7x

Identify the expression equivalent to 4(x + x + 7) − 2x + 8 − 4 by substituting x = 1 and x = 2.

What would be the reasons for lines 3 and 4? a. addition property; subtraction property b. addition property; solve c. substitution property; subtraction property d. substitution property; prove