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SIZIF [17.4K]
3 years ago
10

Factorise9x² -(3y - 4x)²​

Mathematics
1 answer:
son4ous [18]3 years ago
4 0

Answer:

(7x-3y) (-x+3y)

Step-by-step explanation:

(3x-3y+4x) (3x+3y-4x)

<em>(<u>3x</u></em>-3y+<em><u>4x</u></em>) (<em><u>3x</u></em>+3y<em><u>-4x</u></em>)

(7x-3y) (-x+3y)

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drek231 [11]

Represent Age of Time Traveler =========> X

Solve:

x = 3(x - 20 )


Step 1: Simplify Both sides of equation:

x = 3(x - 20 )

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Step 2: Subtract 3x from both sides:

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Step 3: Divide both sides by -2:

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3 years ago
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Sarah used 2.5 cups of cheese in a dish that serves 5 people. How many cups of cheese is needed
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0.5 cups or 1/2 a cup per person

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3 years ago
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