Answer:
a)2x-3y
b)4(9a-4)
Step-by-step explanation:
<h3>a)</h3>
we want to expand the following expression:

well to do so we consider distributive property thus distribute:

reduce fraction which yields:

simplify Parentheses:

<h3>b)</h3>
in the expression there's a common factor of 4 therefore factor it out:

Answer:
4√7
Step-by-step explanation:
5√7 + √7 - 2√7
add: 6√7 - 2√7
subtract: 4√7
It is 2 !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
588 english tst ok alright