Question

expand( x +8 )(x-4) ​

Answer 1

• We have to evaluate the above expression by using the given data.

              Given data:- $(x+8)(x-4).$

              To find:- Value of the expression.

              Solution:-

• We know that factorization means reducing any algebraic or quadratic equation.

• Steps to solve quadratic equations,

• Step 1: Rearrange the given quadratic so that is it equal to zero.

• Step 2: Factorise the quadratic.

• Step 3: Form two linear equations.

• Step 4: Solve the equations to find the roots of the equation.

        Therefore,

         $=>(x+8)(x-4)\\=>x(x-4)+8(x-4) \\=>x^{2}-4 x+8(x-4)\\=>x^{2}-4 x+8 x-32 \\=>x^{2}+4 x-32.$

   Hence we will get the value $(x+8)(x-4)=x^{2}+4 x-32.$

Answer 2

Answer:

Hence we get the value of expand  $(x+8)(x-4)=x^{2} +4x-32$

Step-by-step explanation:

As per the data in given equation

In above question it is given that

We have find the value of given expression

Given the data in question ( x +8 )(x-4) ​

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,

$(a+b)\times(c-d)\\ac-ad+bc-bd$

Now putting the value

$(x+8)(x-4)=(x\times x)-(x\times 4)+(8\times x)-(8\times 4)\\x^{2} -4x+8x-32\\x^{2} +4x-32$