Question

Expand (23 -
5
+ 2z)2 using suitable identities.​

Answer 1

Answer:

(46-10+4z) is your answer

Step-by-step explanation:

(23 - 5 + 2z)2

= (23*2)-(5*2)(2z*2)

=(46-10+4z)

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Answer 2

$\bold{( {23 - 5 + 2z}) \times 2 } \\ \bold{ = \: (23 \times 2) - (5 \times 2) + (2z \times 2)} \\ \bold{ = \: 46 - 10 + 4z} \\ \bold \red{ = \: 36 + 4z \: \: ....ans}$

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