JavaeP347661 JavaeP347661
  • 25-10-2022
  • Mathematics
contestada

Subtract the following polynomials 1) (2x + 43) - (-3x-9)2) (f+9) - (12f 79)3) (75 X²)+ 23 + 13) - (15 X² - X + 40)

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JahmilO329512 JahmilO329512
  • 25-10-2022

for 1.

2x+43+3x+9=5x+52

2.

f+9-12f+9=f-12f+9-9=-11f

3.

75x^2 +23x+13-15x^2+x-40=

=60x^2+24x-27

for 2)

23d^3+(7g^9)^13

remember that power to the power means that you need to multipy the exponents

=23d^3+7^13g^117

34x(2x-11)=68x^2-374x

2m(m+3n)=2 m^2+6mn

we have lenght

l=2x+5

w=x+7

area, A= lxw

A= (2x+5)(x+7)

this is the polynomial for the area

if we have x=12

l= (2*12)+5=24+5=29

w=12+7=19

A=29*19=551 ft^2

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