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3 years ago

What does 5x+8squared-9x+2xsquared

Mathematics

2 answers:

umka21 [38]3 years ago

7 0

The answer is -4x+64+2x^2

Charra [1.4K]3 years ago

7 0

5x+8squared-9x+2xsquared simplifies to

-4x+64+2xsquared. You must solve for x to figure out the total. But in order for that to happen, you must cancel each other out. Like an equation problem.

2xsquared stays the same because there are no other numbers that have a #variable&exponent, therefore, it does not combine with anything else.

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Read 2 more answers

you take a group of 20 people going to the movies. kids’ tickets cost $4 each, and adults tickets $6 each. your total cost is $9

brilliants [131]

The number of kids in your group is 12.

Step-by-step explanation:

Given,

Number of people = 20

Cost of each kid ticket = $4

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Let,

x be the number of kids ticket

y be the number of adult ticket

According to given statement;

x+y=20 Eqn 1

4x+6y=96 Eqn 2

Multiplying Eqn 1 by 4

$4(x+y=20)\\4x+4y=80\ \ \ Eqn\ 3$

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Putting y=8 in Eqn 1

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Keywords: linear equation, elimination method

Learn more about elimination method at:

#LearnwithBrainly

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