Question

See full question below.

Given B = ( see attached image) , I = ( see attached image) and
f(x) = 4x² +3x-5.

Find :
I. B²
II. f( B+I)
III. f(B)²​​

Answer 1

Solve the determinants first:

• B = 5*4 - 2*(-3) = 20 + 6 = 26
• I = 1*1 - 0*0 = 1 - 0 = 1

Find the following

I.

• B² = 26² = 676

II.

• f(B + I) = f(26 + 1) = f(27)
• f(27) = 4*27² + 3*27 - 5 = 2992

III.

• f(B)² = f(26)² = f(676)
• f(676) = 4*676² + 3*676 - 5 = 1829927