AYUDA PROFAVOR!! ayudenme con esto pls
I Parte. Reducción de términos semejantes de signos iguales

22x3y3 + 30x3y3 =
-18a2b2c2 - 25a2b2c2 =
21x3y3z3 21x3y3z3 =

II Parte. Reducción de términos semejantes de signos diferentes

70x3z2 - 15x3z2 =
- 47m3n3 + 23m3n3 =
21a3b2c2 - 21a3b2c2 =

III Parte. Reduzca los siguientes términos

13x2y3 - 15xy2 + 21x4y + 55xy2 - 71x2y3 =
-32a2b3 - 6mn3 + 17a2bc + 48mn3 + 20a2b3 =

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)

it is b)

hope this : )

step-by-step explanation:

dont think so

step-by-step explanation: