factorise the following (2a-7)(2a-7)
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Answer:
(2 a - 7 )²
Step-by-step explanation:
when we will factorise we will get the answer
Answered by
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Answer: 4a² - 28a + 49
(2a - 7) (2a - 7) can be written as
(2a - 7)²
if you remember the algebraic identity then you will see that it is in the form of (a - b)², if you dont know it then i will tell you
there are proven statements which are used to solve/facterise problems in mathematics, one such is the (a - b)² identity, so the equation that we formed earlier is in the form of this identity, so let's see the full identity
(a - b)² = a² - 2ab +b² so if we substitute then
(2a - 7)² = (2a)² - 28a + 49
= 4a² - 28a + 49 is the answer
Hope this helps you ^-^
Marking this answer as the brainliest would be spectacular.
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