Can anyone please help with this question
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first we distribute
using the distributive property of multiplication which is a(b+c)=(ab)+(ac)
4(x+5) is also (4x)+(4(5))=4x+20
4x+20=x+8
subtract x from both sides
3x+20=8
subtract 20 from both sides
3x=-12
divide both sides by 3
x=-4
4x+4*5=x+8
4x+20=x+8
4x-x+20=x+8-x
3x+20-20=8-20
3x=-12
3x/3=(-12)/3
x=-4
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Answers
Answer:
- x = - 6
Step-by-step explanation:
A hole is an input value that makes both numerator and denominator equal to zero.
Let's factorize the numerator and denominator:
- 3x² - 108 = 3(x² - 36) = 3(x + 6)(x - 6)
- x² + 2x - 24 = x² + 6x - 4x - 24 = x(x + 6) - 4(x + 6) = (x - 4)(x + 6)
We have same factor of x + 6:
- x + 6 = 0
- x = - 6 is a hole
Factor denominator to 0
- x²+2x-24=0
- (x+6)(x-4)=0
- x={-6,4}
Factor numerator
- 3x²-108=0
- 3(x²-36)=0
- 3(x+6)(x-6)=0
- x={-6,6}
x=-6 is the hole as it's common
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2/3cup
1 1/2cups
1/2 cup
3/8cup
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3/4 x 1/2 = 3/8 cup of flour is needed.
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Combine like terms
2x³ + 2x² + 6x - 3x - 3 + 2
Final answer:
2x³ + 2x² + 3x - 1