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[tex](5 \times 5) + (5 \times 7) - (8 \times 4 + 2 \times 9) = [/tex]


Răspuns :

[tex]\bf (5\cdot 5)+(5\cdot 7)-(8\cdot 4+2\cdot 9)=[/tex]

[tex]\bf 25+35-(32+18)=[/tex]

[tex]\bf 60-(50)=[/tex]

[tex]\bf 60-50=[/tex]

[tex]\boxed{\bf 10}[/tex]

Răspuns:

10

Explicație pas cu pas:

(5×5)+(5×7)-(8×4+2×9)=

25+35-(32+18)=

25+35-50=

60-50=

10