How To Solve This Problem??, 1.(2r-5) (2r-5)??? , 2.(2h+7)(2h+7),

How to solve this problem??
1.(2r-5) (2r-5)???
2.(2h+7)(2h+7)

 

Answer:

(2r−5)(2r−5)

FOIL METHOD:

=(2r)(2r)+(2r)(−5)+(−5)(2r)+(−5)(−5)

COMBINE LIKE TERMS

=4r²−10r−10r+25

SIMPLIFY

=4r²−20r+25

(2h+7)(2h+7)

FOIL METHOD

=(2h)(2h)+(2h)(7)+(7)(2h)+(7)(7)

COMBINE LIKE TERMS

=4h²+14h+14h+49

SIMPLIFY

=4h²+28h+49

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