Question

Simplify : (x + 2y – 5z)^2 – (x – 2y + 5z)^2


agar answer nhi aata toh galti se bh copy and paste krne ki try mt krna.......and plzz i want full explanation

Answer 1

Answer:

Step-by-step explanation:

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Answer 2

Let us see the step-by-step solution to this question.

(x + 2y - 5z)² - (x - 2y + 5z)²

= (x + 2y - 5z - x + 2y - 5z) (x + 2y - 5z + x - 2y + 5z)

= (4y - 10z) (2x)

= 8xy - 20xz

What is actually done in this solution is using the formula : a² - b² = (a+b) (a-b) and after that we simply proceed the solution towards an end. Ultimately the answer emerges out automatically through our calculations.