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Evaluate each...

Question

Evaluate each of the following expressions:

(a) (35 – 49) ÷ (7 ÷ 1) (b) [(0 ÷ 12) ÷ 1]

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Evaluate each of the following:

$(a) (- 30) \div 10$

$(b) 50 \div (- 5)$

$(c) (- 36) \div (- 9)$

$(d) (- 49) \div 49$

$(e) 13 \div [- 2 + 1]$

$(f) 0 \div (- 12)$

$(g) (- 31) \div [(- 30) + (- 1)]$

$(h) [(- 36) \div 12] \div 3$

$(i) [- 6 + 5] \div [- 2 + 1]$

Q. Evaluate each of the following algebraic expressions for x = 1, y = −1, z = 2, a = −2, b = 1, c = −2:
(i) ax + by + cz
(ii) ax² + by² − cz²
(iii) axy + byz + cxy

Q. Factorize each of the following expression:
49(a − b)² − 25(a + b)²

Q. Evaluate the below expression using identities:

(b - 7)^{2}

Q. Evaluate each of the following algebraic expressions for

x = 1, y = - 1, z = 2, a = - 2, b = z, c = - 2

a x + b y + c z = ?

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