Efectúa las siguientes sumas y restas de expresiones algebraicas
1. 6a²+8ab-3b+4a2-5+7b=
2. 5xy+2y +4x-1-6x+4xy+2y2-3=
3. 6xy+8x-1y+3x-7y+4xy-5xy+2y-6x=
4. 4+2x²y +6y2+7x+9-6x+4x?y?+2y2-3=
5. 3aw-7xy -10aw+15xy =

answer:

1. 0.04

2. 0.15

step-by-step explanation:

i just finished that assignment for properties of probability distributions.

15

step-by-step explanation:

we are given the following expression and we are to solve it and find the product:

-13 × (-5)

solving the given expression in the standard order of solving a mathematical expression, beginning with the opening of brackets and then multiplying the terms and changing their signs.

-3 × -5 = 15 (answer is positive because when negative is multiplied with negative, it gives a positive answer)

i think it's ф or x=6,-6

step-by-step explanation:

-x^2=-36

x^2=-36

ф

or

if you mean by : -(x^2)=-36

it'll be: x^2=36

x=6,x=-6

hope it'll ! have a good day!

you for asking!