1.

(i) x2-3x + 44x2-2x +7x2+5x-2

Answer»

(x^2 - 3x + 4) + (4x^2 - 2x + 7) + (-x^2 + 5x - 2)= (1+4-1)x^2 + (-3-2+5)x + (4+7-2)= 4x^2 + 0*x + 9= 4x^2 + 9

write



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