Question

please please please please please answer answer answer answer

Answer 1

hello mate!.........


given........


$4) 7x {}^{2} - 5x + 3 - (2x {}^{2} + 5x - 7) \\ \\ = 7x {}^{2} - 5x + 3 - 2x {}^{2} - 5x + 7 \\ \\ = 5x {}^{2} - 10x + 10 \\ \\ \\ 5)10b {}^{2} + 7ab + a{}^{2} - (2ab + 7a {}^{2} + 8b {}^{2} ) \\ \\ = 10b {}^{2} + 7ab + a { }^{2} - 2ab - 7a {}^{2} - 8b {}^{2} \\ \\ = 2b {}^{2} - 6a {}^{2} + 5ab$
HOPE IT HELPS U DEAR......

Answer 2

Hola!!

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2)✔2

✔3

✔6

✔5

3)➡17x^2+3x+4

➡12x^2y+3x^2y^2-4xy^2

➡8x^2y^2+29+10x^2y-3xy^2

4)➡7x^2-5x+3-2x^2-5x+7

=5x^2-10x+10

5)➡10b^2+7ab

+a^2-2ab-7a^2-8b^2

=2b^2-6a^2+5ab

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hope it helps ☺

✌be brainly