I have to identify the like terms, then simply each expression 1.
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0

Step-by-step explanation:

it's easy

(a- 2a) – (3a – 4a²)

Combine a and -2a2 to get -a?.

a? - (32 – 4a?)

Combine 3a2 and -4a2 to get -a?.

-a?-(-a)

The opposite of -a2 is a?.

ta²

Combine - and a to get 0.

your answer is nothing i mean 0

Hope it helps you if yes then make me brainist.

point a is the center of the circle that passes through points e, f, and g and the center of the circle that passes through points x, y, and z.

square pyramid

step-by-step explanation:

square prism looks like nothing like that

triangular prism has a rectangular base instead of a square base

tetrahedron has a triangular base