if a+b=√7 and a-b=√5 then answer to following a) find the value of 2a²+2b² b) show that, 8ab(a²+b²)=24 (edited)

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter1: Fundamental Concepts Of Algebra
Section1.1: Real Numbers
Problem 29E
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im sorry idont know if they were sent im super sorry

if a+b=√7 and a-b=√5 then answer to following
a) find the value of 2a²+2b²
b) show that, 8ab(a²+b²)=24 (edited)
Transcribed Image Text:if a+b=√7 and a-b=√5 then answer to following a) find the value of 2a²+2b² b) show that, 8ab(a²+b²)=24 (edited)
c) find the value of (2a-4b+7c)²+(a+b-7c)²+2(2a-4b+7c)
Transcribed Image Text:c) find the value of (2a-4b+7c)²+(a+b-7c)²+2(2a-4b+7c)
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