Question

Will give brainliest!!

Answer 1

Answer:

$\huge\boxed{\sf n = 49}$

Step-by-step explanation:

Given expression:

$x^2-14x+n$ ---------------(1)

We need to solve it using the following formula:

$a^2-2ab+b^2=(a-b)^2$

Writing the middle term in the expression as 2ab

$(x)^2-2(x)(7)+n$

Form the expression, we come to now that

b = 7

So, the we can write the expression as:

$(x)^2-2(x)(7)+(7)^2\\\\x^2-14n+49$

Comparing expression (1) with the above expression, we get:

n = 49

$\rule[225]{225}{2}$