Mathematics: Please can someone help; this is not cheating btw.

53 because you can only get to it with multiplying the same 2 numbers. (53 & 1)....

Please can someone help; this is not cheating btw.

copelandgarret9972

21.01.2022

By determining the area of the square, we get $x^{2} +4x = 3.$

Step-by-step explanation:

Step 1:

The area of a square is given by squaring its side length.

The given squares side length is (x+2) cm.

The area of a square $= a^{2} .$ Here a is the side length.

The area of the square is given as 7 cm².

Step 2:

Substituting the value of a in the equation, we get

$7 = (x+2)^{2} = x^{2} + 4x + 4.$

Taking the x values on one side and the constants on the other side, we get

$x^{2} +4x= 7-4 =3.$

So $x^{2} +4x = 3.$

So it has been proved.

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