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given:
f(x)=2x-1
g(x)=x+1
h(x)=2x^2+x-1

Given Fx2x1 Gxx1 Hx2x2x1 class=

Sagot :

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Answer:

  • Given Below

Step-by-step explanation:

(a)

f(-2)

2(-2)-1

-4-1

-5

(b)

h(3b)

2(3b)²+3b-1

2(9b²)+3b-1

18b²+3b-1

9

(c)

x+1 - 3(2x-1)-2(2x²+x-1)

x+1 - 6x+3-4x²-2x+2

-4x²-7x+6

(d)

(f-g)(-2)

2x-1-(x+1)

2x -1 - x - 1

x - 2

-2 - 2

-4

(e)

((2x²+x-1)(x+1))

2x³+2x²+x²+x-x-1

2x³+3x²-1

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