Question

а + 2b, -2а + b, 3а - 5b, За + 3​

Answer 1

answer

2bx

Step-by-step explanation:

x=a+2b−a−2ba+2b+a−2b

=a+2b−a−2ba+2b+a−2b×a+2b+a−2ba+2b+a−2b

=(a+2b)−(a−2b)(a+2b+a−2b)2

=2ba+a2−4b2    (Using identities and then simplifying)

⇒2bx=

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