Question

Simplify
(abc+7) ² - 14abc​

Answer 1

Step-by-step explanation:

(abc+7)²-14abc

(abc+7)²-2.7abc

(ABC)²+49

Answer 2

$(abc+7)^2 - 14 abc\\\\(a+b)^2 = a^2 + 2ab + b ^2\\\\here ,\\\\a = abc\\\\\\\b= 7\\\\(abc + 7)^2 = (abc)^2 + 2 * abc * 7 + 7^2 \\\\(abc + 7)^2 = a^2b^2c^2 + 14abc + 49\\\\(a^2b^2c^2 + 14abc + 49 ) - 14abc\\\\a^2b^2c^2 + 14abc + 49 - 14abc\\\\a^2b^2c^2 + 49$

Hope it helps !!