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2 years ago

HEYYYY NOBODY ANSWER MY MATH QUESTION I ASK THIS MORNING THAT'S NOT FAIR!!!

Mathematics

1 answer:

Leviafan [203]2 years ago

4 0

Answer:

( a+b) (a-b)

x^2 - 50

Step-by-step explanation:

The formula for difference of squares is

a^2 - b^2 = ( a+b) (a-b)

121x^2 -144 = (11x)^2 - 12^2 so this is the difference of squares

x^2 - 16y^2 = (x)^2 - (4y)^2 so this is the difference of squares

9x^2 -64 = (3x)^2-8^2 so this is the difference of squares

x^2 - 50 = (x)^2 - 2*(5)^2 this is not the difference of squares

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A system of equations is shown below. y = –x – 3 5x + 2y = 9 What is the solution to this system?

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Answer:

$x=5\ and\ y=-8$

The solution of the system can be given as (5,-8).

Step-by-step explanation:

Given system of equations:

$y=-x-3$

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To solve the given system of equations:

Solution:

We will use substitution to solve the given system.

We will substitute the $y$ values in terms of $x$ from the equation $y=-x-3$ into the other equation to solve for $x$

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