Question

. If p = -4, q = -2 , r = 4 , find the value of :
2p square – q square + 3r square

Answer 1

Answer:

70

Step-by-step explanation:

$2 \times { - 2}^{2} - ({ - 2}^{2} ) + 3 ({4}^{2})$

$2 \times 4 - 4 + 3 \times 16$

$= 32 - 4 - + 42$

$= 32 + 38$

$= 70$

Answer 2

Step-by-step explanation:

Given, p= -4, q= -2, and r = 4

therefore,

(2p) square - (q) square + (3r) square

= (2 * -4) square - (-2) square + (3 * 4) square

= (-8 )square - 4 + (12) square

= 64 - 4 + 144

= 60 + 144

= 204