CPM Homework Help : INT3 Problem 1-23

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1-23.

Use the Zero Product Property to solve for $x$ .

$(x+13)(x-7)=0$
Hint (a):
Set each factor equal to $0$ , then solve for $x$ .
Answer (a):
$x=−13$ or $x=7$

$(2x+3)(3x-7)=0$
Hint (b):
Refer to part (a).
Answer (b):
$x=-\frac{3}{2}\text{ or }x=\frac{7}{3}$

$x(x-3)=0$
Hint (c):
Refer to part (a).
Answer (c):
$x=0$ or $x=3$

$x^2-5x=0$
Hint (d):
Factor the problem first, then set each factor equal to $0$ and solve for $x$ .
More Help (d):
$x(x−5)=0$
Answer (d):
$x=0$ or $x=5$

$x^2-2x-35=0$
Hint (e):
Remember to factor first.

$3x^2+14x-5=0$
Hint (f):
Remember to factor first.

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