When $a = 0, b = - 1$ , find of the given expressions
${2 a}^{2} + b^{2} + 1$

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Solution

$a = 0, b = - 1$
$2 a^{2} + b^{2} + 1$
$2 {(0)}^{2} + {(- 1)}^{2} + 1$
$0 + 1 + 1$
$= 2$

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2 a^{2} + b^{2} + 1

Question 5 (ii)

When a = 0, b = -1, find the value of the given expression:
$2 a^{2} + b^{2} + 1$

a = 0, b = - 1

2 a^{2} b + 2 a b^{2} + a b

When a = 0, b = − 1, find the value of the given expressions:

(i) 2a + 2b (ii) 2a²+ b² + 1

(iii) 2a²b + 2ab² + ab (iv) a² + ab + 2

2 a^{2} - 3 b^{2} + 4 c^{2} - 5 d^{2}

a = 3, b = 0, c = 2

d = 1

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