Question

Answer of (×+1)(×+7)

Answer 1

Answer:

Hence the answer of $(x+1)(x+7)=x^{2} +8x+7$

Step-by-step explanation:

In accordance with the information provided in the question,

We have find the value of the supplied expression in the above question.

Given the data in question  (×+1)(×+7)

As we know that $(a+b)(a+b)$

As the given equation is in form of

So, for finding the value of the expression we will first multiply "a" with "c" and a with  "d" and then multiply "b" with "c" and b with "d", and then add the resultant value.

So, value of expression we will be

$ac+ad+bc+bd$

$(x+1)(x+7)=(x\times x)+(x\times 7)+(1\times x)+(1\times 7)\\x^{2} +7x+x+7\\x^{2} +8x+7$

Answer 2

Answer:

(x+1)(x+7)

Step-by-step explanation:

=(x+1)(x+7)

from identity (x+a)(x+b)=x^2+(a+b)x+ab

=x^2+(1+7)x+1×7

=(x^2+1x)+(7x+7)

= x(x+1)+7(x+1)

=(x+1)(x+7). ans..