Question

factorise =
7) 3x³ + 15x - 18
8) 10 - 13x - 9x²
9) a² - 4ab + 4b² - c²
10) 1 - 4x - 4y - 5(x + y)²​

Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

Answer:

DEFINITION

Properties of Inequalities

Transitive Properties of Inequality:

If a < b and b < c , then a < c .

If a > b and b > c , then a > c

Addition Properties of Inequality:

If a < b , then a + c < b + c

If a > b , then a + c > b + c

Subtraction Properties of Inequality:

If a < b , then a - c < b - c

If a > b , then a - c > b - c

These properties also apply to and :

If ab , then a + cb + c

If ab , then a + cb + c

If ab , then a - cb - c

If ab , then a - cb - c

Multiplication and division Properties of Inequality

If a > 0 , then - a < 0

If a < 0 , then - a > 0