Grade 128 grade maths
Factorise. 49x^2 –36 ???????????????????????????????????
Factorise.
49x^2 –36 ???????????????????????????????????
1 Answer
Harshit Singh
Dear Student
49x^2–36 = (7a)^2-6^2
= (7a+6)(7a–6)
Using identity: x^2-y^2= (x+y)(x-y)
Thanks
49x^2–36 = (7a)^2-6^2
= (7a+6)(7a–6)
Using identity: x^2-y^2= (x+y)(x-y)
Thanks
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