1. (X+4) (X+4), 2. (2r-5) (2r-5), 3. (3-4m) (3-4m), 4. (2h-7) (2h-7), 5. (8-3x) (8-3x)Durr

1. (x+4) (x+4)<br />

2. (2r-5) (2r-5)<br />
3. (3-4m) (3-4m)<br />
4. (2h-7) (2h-7)<br />
5. (8-3x) (8-3x)durr

 

Answer and Step-by-step explanation:

1.(x+4)(x+4)

=(x+4)(x+4)

=(x)(x)+(x)(4)+(4)(x)+(4)(4)

=x²+4x+4x+16

=x²+8x+16

2.

(2r-5) (2r-5)

=(2r)(2r)+(2r)(−5)+(−5)(2r)+(−5)(−5)

=4r²−10r−10r+25

=4r²−20r+25

3.

(3−4m)(3−4m)

=(3)(3)+(3)(−4m)+(−4m)(3)+(−4m)(−4m)

=9−12m−12m+16m²

=16m²−24m+9

4.

(2h−7)(2h−7)

=(2h)(2h)+(2h)(−7)+(−7)(2h)+(−7)(−7)

=4h²−14h−14h+49

=4h²−28h+49

5.(8−3x)(8−3x)

=(8)(8)+(8)(−3x)+(−3x)(8)+(−3x)(−3x)

=64−24x−24x+9x²

=9x²−48x+64