Question

2(a²+ab)+3-ab) if a=5 and b=-3​

Answer 1

Answer:

= $2( {a}^{2} + ab) + 3 - ab$

= $2({5}^{2} + (5)\times ( - 3)) + 3 - (5) </p><p> = ( - 3)$

=$2(25 + ( - 15)) + 3 - ( - 15)$

=$2(25 - 15) + (3 + 15)$

=$2(10) + (18)$

=$2(28)$

=$56$