Question

2 (-4ab+5b^2-1)-11ab-7a^2+10
$2( - 4ab + 5 {b}^{2} - 1) - 11ab - 7 {a}^{2} + 10$
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Answer 1

Respuesta:

$2( - 4ab + 5 {b}^{2} - 1) - 11ab - 7 {a}^{2} + 10 \\ - 8ab + 10 {b}^{2} - 2 - 11ab - 7 {a}^{2} + 10 \\ - 7 {a}^{2} + 10 {b}^{2} - 8ab - 11ab + 1 0 - 2 \\ = - 7 {a}^{2} + 10 {b}^{2} - 19ab + 8$