Question

Algebra Help Please!

1. Use the Zero Product Property to solve the equation.
(x-9) (x-8) = 0

A) x = -8 or -9
B) x = 8 or 9
C) x = -2 or -3
D) x = 0


2. Use the Zero Product to solve the equation.
(4k + 5) (k + 7) = 0

A) k = 5/4 or 7
B) k = 5/4 or -7
C) k = -5/4 or -7
D) k = -5/4 or 7


3. Solve by factoring.
g^2 + 4g - 32 = 0

A) g = 32 or 28
B) g = 4 or 8
C) g = 2 or -16
D) g = 4 or -8


4. Solve by factoring.
s^2 - 14s + 45 = 0

A) s = 3 or 15
B) s = -5 or -9
C) s = 5 or -9
D) s = 5 or 9


5. Solve by factoring.
2z^2 - 21z - 36 = 0

A) z = 6 or -6

Answer 1

5. Solve by factoring.
2z^2 - 21z - 36 = 0

A) z = 6 or -6
B) z = 3 or -24
C) z= -3 or 24
D) z = -3/2 or 12

Answer 2

@phi

Answer 3

how far did you get ?

Answer 4

btw, you should make only one question per post, otherwise it is too confusing

Answer 5

if A is zero, do you know what is A*B ?

Answer 6

@phi I don't understand what to do for any of the questions

Answer 7

@Directrix

Answer 8

The point is to learn the idea, and we start by knowing what is
0*1 ?

Answer 9

The Zero Product Property simply states that if ab = 0, then either a = 0 or b = 0 (or both). A product of factors is zero if and only if one or more of the factors is zero.

Answer 10

s^2 - 14s + 45 = 0

What are two numbers that multiply to 45 and add to -14 ? @Answers101

Answer 11

We need those numbers to factor unless you already know how s^2 - 14s + 45 factors.