So for the first one it is (x-3)(x+3) this is because it is a difference of squares so you square root the 9 and the minus you do both +and - in order to keep up the -9
The zeros are:x=3 and x=-3 ( this is because you change the sign in the bracket
the others should be pretty simple to do for number 2 its a complex
the third is a simple trinomial
and fourth is simple trinomial as well
Laura's age is 9 years.
Solution:
Let x be the age of April.
Laura's age = 2 years more than half of April's age
<u>Convert statement into algebraic expression:</u>
Half of April's age = 
2 years more than half of April's age = 
Combined age of April and Laura = 23
⇒ April's age + Laura's age = 23



To add the fractions make the denominators same.
Multiplying 2 on both numerator and denominator of unlike terms, we get


Denominators are same, now add the fractions.

Do cross multiplication.




Aprils's age = 14 years
Laura's age = 
= 7 + 2
Laura's age = 9
Hence Laura's age is 9 years.
Answer:
Step-by-step explanation:
There's no "solving" to be done because its an expression, but im assuming the question wants you to factor.

First, factor out a b^2

Factor the trinomial. What two numbers multiply to equal -10 but add to equal -3? They are -5 and +2

Answer:
I you will draw a number less than thirteen one fourth of the time. so 25%
Step-by-step explanation:
52 divided by 13 is four.
Answer:
Step-by-step explanation:
the slope-International cept frome y= mx + b was where m is the slope and b y-intercept
y=mx +b
m= -2/5
b=2
slope is :2/5
y-intercept is :2
x. y
0. 2
1 8/5