Question

1. Add: 8x2 + 7xy – 6y2, 4x2 – 3xy + 2y2 and -4x2 + xy – y2 Q2.

2. Subtract: (4x + 5) from (-3x + 7) Q3. Subtract: 3x2 – 5x + 7 from 5x2 – 7x + 9 Q4.

3. Multiply the following expressions: (a) 3xy2 × (-5x2y) (b) 12 x2yz × 23 xy2z × 15 x2yz

4. Simplify the following: (i) a2 (b2 – c2) + b2 (c2 – a2) + c2 (a2 – b2) (ii) x2(x – 3y2) – xy(y2 – 2xy) – x(y3 – 5x2)

Pls solve this....No wrong answers will be entertained...

Answer 1

sorry for one thing .

I don't know how to solve in 4.simply the following I am extremely sorry

Answer 2

Step-by-step explanation:

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