20, you just need to substitute the x value in the equation
(-2)2-7(-2)+10=
=20
<span>Two triangles with two sides and a non-included angle equal may or may not be congruent. If two angles on one triangle are equal, respectively, to two angles on another triangle, then the triangles are similar, but not necessarily congruent.</span>
93+(68+7)
first do what's in the parentheses
(68+7)
68+7= 75
new problem: 93+75
93+75= 168
Answer is 168