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cupoosta [38]
4 years ago
13

When solving the equation 4(3x^2 +2)-9=8x^2+7. Emily wrote 4(3x + 2)=8x^2 + 16 as her first step. Which property justifies Emily

's first step? State a reason why1) Addition Property of Equality2)Commutative Property of Addition3) Multiplication Property of Equality4) Distributive Property of Multiplication Over Addition
Mathematics
1 answer:
vfiekz [6]4 years ago
6 0
Hello : 
4(3x² +2)-9=8x²+7 = <span>4(3x^2 +2)-9 +9 =8x²+7 +9 
                                = </span><span> 4(3x² + 2)=8x² + 16
</span><span>(State a reason why1) Addition Property of Equality)</span>
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The second of two numbers is 3 less than twice the first. Their sum is 36. Find the numbers.
swat32
<span>The first number = x
The </span>second number = 2x-3

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Read 2 more answers
Simplificar A=4x2-6x2+7x2-20x2+19x2
maks197457 [2]

Answer:

4x²

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Your equation is 4x² - 6x² + 7x² - 20x² + 19x².

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5x² - 20x² + 19x²

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4x²

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