Question

10.
What must be added to 5x 3
2x2 + 6x + 7 to make the sum x3 + 3x2 - x +1?
Let
P = a 2
- b2 + 2ab, Q = a + 4b2 – 6ab,
- 2a2 + b 2
R= b 2 + 6, S= a- 4ab
T= -2a2
ab + a. Find P + Q + R + S - T.
11. What must be subtracted from a®
4a² + 5a – 6 to obtain a² - 2a + 1?
How much
and​

Answer 1

Answer:

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Don't know the answer sorry ....