MATHEMATICS HIGH SCHOOL

Factorise
5x(squared) + 17x -12
3x(squared) + 10x +7

Answers

Answer 1
Answer: 5x² + 17x - 12
5x² - 20x + 3x - 12
5x(x) - 5x(4) + 3(x) - 3(4)
5x(x - 4) + 3(x - 4)
(5x + 3)(x - 4)

3x² + 10x + 7
3x² + 3x + 7x + 7
3x(x) + 3x(1) + 7(x) + 7(1)
3x(x + 1) + 7(x + 1)
(3x + 7)(x + 1)

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Write an expression that is equivalent to 5(t+3) .

Answers

Answer: 5t+15

Step-by-step explanation: Distribute the 5 into the parenthesis.

5 x t = 5t

5 x 3 = 15

You will get 5t +15.

Answer: 5t+15

This is equivalent to 5t+5*3

To get the answer, you multiply the outer term 5 by each term inside

5 times t = 5*t = 5t

5 times 3 = 5*3 = 15

Then you add up those products to get 5t+15.

This is using the distributive property.

the scale on the a map is 1 inch = 2 1/2 miles the distance between two streets on the map is 1 3/4 what is the actual distance between these streets

Answers