Question

If P = 2x - 5x + 2. Q = 5x + 6x - 3 and R=3x:-:- 1. Find the value of 2P - Q +3R.
Question 18.​

Answer 1

Answer:

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Step-by-step explanation:

given

p=2x^2-5x+2

q=5x^2+6x-3

r=3x^2-x-1

find 2p-q+3r

=2(2x^2-5x+2)-(5x^2+6x-3)+3(3x^2-x-1)

=(4x^2-10x-4)-(5x^2+6x-3)+(9x^2-3x-3)

=4x^2-10x-4-5x^2-6x+3+9x^2-3x-3

=8x^2-19x+4

Answer 2

Answer:

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Step-by-step explanation:

see the above attachment